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4
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1 from __future__ import division
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2 import csv
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3 from enum import Enum
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4 import re
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5 import sys
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6 import numpy as np
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7 import pandas as pd
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8 import itertools as it
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9 import scipy.stats as st
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10 import lxml.etree as ET
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11 import math
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12 import utils.general_utils as utils
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13 from PIL import Image
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14 import os
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15 import argparse
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16 import pyvips
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17 from typing import Tuple, Union, Optional, List, Dict
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143
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18 import copy
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4
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19
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20 ERRORS = []
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21 ########################## argparse ##########################################
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22 ARGS :argparse.Namespace
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147
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23 def process_args(args:List[str] = None) -> argparse.Namespace:
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4
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24 """
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25 Interfaces the script of a module with its frontend, making the user's choices for various parameters available as values in code.
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26
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27 Args:
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28 args : Always obtained (in file) from sys.argv
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29
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30 Returns:
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31 Namespace : An object containing the parsed arguments
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32 """
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33 parser = argparse.ArgumentParser(
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34 usage = "%(prog)s [options]",
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35 description = "process some value's genes to create a comparison's map.")
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36
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37 #General:
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38 parser.add_argument(
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39 '-td', '--tool_dir',
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40 type = str,
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41 required = True,
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42 help = 'your tool directory')
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43
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44 parser.add_argument('-on', '--control', type = str)
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45 parser.add_argument('-ol', '--out_log', help = "Output log")
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46
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47 #Computation details:
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48 parser.add_argument(
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49 '-co', '--comparison',
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50 type = str,
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51 default = '1vs1',
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52 choices = ['manyvsmany', 'onevsrest', 'onevsmany'])
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53
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54 parser.add_argument(
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55 '-pv' ,'--pValue',
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56 type = float,
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57 default = 0.1,
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58 help = 'P-Value threshold (default: %(default)s)')
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59
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60 parser.add_argument(
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61 '-fc', '--fChange',
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62 type = float,
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63 default = 1.5,
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64 help = 'Fold-Change threshold (default: %(default)s)')
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65
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66 parser.add_argument(
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67 "-ne", "--net",
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68 type = utils.Bool("net"), default = False,
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69 help = "choose if you want net enrichment for RPS")
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70
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71 parser.add_argument(
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72 '-op', '--option',
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73 type = str,
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74 choices = ['datasets', 'dataset_class'],
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75 help='dataset or dataset and class')
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76
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77 #RAS:
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78 parser.add_argument(
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79 "-ra", "--using_RAS",
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80 type = utils.Bool("using_RAS"), default = True,
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81 help = "choose whether to use RAS datasets.")
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82
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83 parser.add_argument(
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84 '-id', '--input_data',
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85 type = str,
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86 help = 'input dataset')
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87
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88 parser.add_argument(
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89 '-ic', '--input_class',
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90 type = str,
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91 help = 'sample group specification')
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92
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93 parser.add_argument(
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94 '-ids', '--input_datas',
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95 type = str,
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96 nargs = '+',
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97 help = 'input datasets')
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98
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99 parser.add_argument(
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100 '-na', '--names',
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101 type = str,
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102 nargs = '+',
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103 help = 'input names')
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104
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105 #RPS:
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106 parser.add_argument(
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107 "-rp", "--using_RPS",
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108 type = utils.Bool("using_RPS"), default = False,
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109 help = "choose whether to use RPS datasets.")
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110
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111 parser.add_argument(
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112 '-idr', '--input_data_rps',
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113 type = str,
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114 help = 'input dataset rps')
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115
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116 parser.add_argument(
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117 '-icr', '--input_class_rps',
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118 type = str,
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119 help = 'sample group specification rps')
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120
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121 parser.add_argument(
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122 '-idsr', '--input_datas_rps',
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123 type = str,
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124 nargs = '+',
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125 help = 'input datasets rps')
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126
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127 parser.add_argument(
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128 '-nar', '--names_rps',
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129 type = str,
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130 nargs = '+',
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131 help = 'input names rps')
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132
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133 #Output:
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134 parser.add_argument(
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135 "-gs", "--generate_svg",
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136 type = utils.Bool("generate_svg"), default = True,
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137 help = "choose whether to use RAS datasets.")
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138
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139 parser.add_argument(
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140 "-gp", "--generate_pdf",
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141 type = utils.Bool("generate_pdf"), default = True,
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142 help = "choose whether to use RAS datasets.")
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143
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144 parser.add_argument(
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145 '-cm', '--custom_map',
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146 type = str,
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147 help='custom map to use')
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148
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149 parser.add_argument(
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146
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150 '-idop', '--output_path',
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151 type = str,
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152 default='result',
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153 help = 'output path for maps')
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154
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155 parser.add_argument(
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4
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156 '-mc', '--choice_map',
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157 type = utils.Model, default = utils.Model.HMRcore,
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158 choices = [utils.Model.HMRcore, utils.Model.ENGRO2, utils.Model.Custom])
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159
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146
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160 args :argparse.Namespace = parser.parse_args(args)
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4
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161 if args.using_RAS and not args.using_RPS: args.net = False
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162
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163 return args
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164
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165 ############################ dataset input ####################################
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166 def read_dataset(data :str, name :str) -> pd.DataFrame:
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167 """
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168 Tries to read the dataset from its path (data) as a tsv and turns it into a DataFrame.
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169
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170 Args:
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171 data : filepath of a dataset (from frontend input params or literals upon calling)
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172 name : name associated with the dataset (from frontend input params or literals upon calling)
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173
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174 Returns:
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175 pd.DataFrame : dataset in a runtime operable shape
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176
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177 Raises:
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178 sys.exit : if there's no data (pd.errors.EmptyDataError) or if the dataset has less than 2 columns
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179 """
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180 try:
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181 dataset = pd.read_csv(data, sep = '\t', header = 0, engine='python')
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182 except pd.errors.EmptyDataError:
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183 sys.exit('Execution aborted: wrong format of ' + name + '\n')
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184 if len(dataset.columns) < 2:
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185 sys.exit('Execution aborted: wrong format of ' + name + '\n')
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186 return dataset
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187
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188 ############################ dataset name #####################################
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189 def name_dataset(name_data :str, count :int) -> str:
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190 """
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191 Produces a unique name for a dataset based on what was provided by the user. The default name for any dataset is "Dataset", thus if the user didn't change it this function appends f"_{count}" to make it unique.
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192
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193 Args:
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194 name_data : name associated with the dataset (from frontend input params)
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195 count : counter from 1 to make these names unique (external)
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196
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197 Returns:
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198 str : the name made unique
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199 """
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200 if str(name_data) == 'Dataset':
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201 return str(name_data) + '_' + str(count)
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202 else:
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203 return str(name_data)
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204
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205 ############################ map_methods ######################################
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206 FoldChange = Union[float, int, str] # Union[float, Literal[0, "-INF", "INF"]]
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207 def fold_change(avg1 :float, avg2 :float) -> FoldChange:
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208 """
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209 Calculates the fold change between two gene expression values.
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210
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211 Args:
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212 avg1 : average expression value from one dataset avg2 : average expression value from the other dataset
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213
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214 Returns:
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215 FoldChange :
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216 0 : when both input values are 0
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217 "-INF" : when avg1 is 0
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218 "INF" : when avg2 is 0
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219 float : for any other combination of values
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220 """
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221 if avg1 == 0 and avg2 == 0:
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222 return 0
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223 elif avg1 == 0:
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224 return '-INF'
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225 elif avg2 == 0:
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226 return 'INF'
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227 else: # (threshold_F_C - 1) / (abs(threshold_F_C) + 1) con threshold_F_C > 1
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228 return (avg1 - avg2) / (abs(avg1) + abs(avg2))
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229
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230 def fix_style(l :str, col :Optional[str], width :str, dash :str) -> str:
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231 """
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232 Produces a "fixed" style string to assign to a reaction arrow in the SVG map, assigning style properties to the corresponding values passed as input params.
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233
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234 Args:
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235 l : current style string of an SVG element
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236 col : new value for the "stroke" style property
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237 width : new value for the "stroke-width" style property
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238 dash : new value for the "stroke-dasharray" style property
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239
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240 Returns:
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241 str : the fixed style string
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242 """
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243 tmp = l.split(';')
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244 flag_col = False
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245 flag_width = False
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246 flag_dash = False
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247 for i in range(len(tmp)):
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248 if tmp[i].startswith('stroke:'):
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249 tmp[i] = 'stroke:' + col
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250 flag_col = True
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251 if tmp[i].startswith('stroke-width:'):
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252 tmp[i] = 'stroke-width:' + width
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253 flag_width = True
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254 if tmp[i].startswith('stroke-dasharray:'):
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255 tmp[i] = 'stroke-dasharray:' + dash
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256 flag_dash = True
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257 if not flag_col:
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258 tmp.append('stroke:' + col)
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259 if not flag_width:
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260 tmp.append('stroke-width:' + width)
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261 if not flag_dash:
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262 tmp.append('stroke-dasharray:' + dash)
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263 return ';'.join(tmp)
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264
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265 # The type of d values is collapsed, losing precision, because the dict containst lists instead of tuples, please fix!
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266 def fix_map(d :Dict[str, List[Union[float, FoldChange]]], core_map :ET.ElementTree, threshold_P_V :float, threshold_F_C :float, max_z_score :float) -> ET.ElementTree:
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267 """
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268 Edits the selected SVG map based on the p-value and fold change data (d) and some significance thresholds also passed as inputs.
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269
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270 Args:
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271 d : dictionary mapping a p-value and a fold-change value (values) to each reaction ID as encoded in the SVG map (keys)
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272 core_map : SVG map to modify
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273 threshold_P_V : threshold for a p-value to be considered significant
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274 threshold_F_C : threshold for a fold change value to be considered significant
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275 max_z_score : highest z-score (absolute value)
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276
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277 Returns:
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278 ET.ElementTree : the modified core_map
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279
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280 Side effects:
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281 core_map : mut
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282 """
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283 maxT = 12
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284 minT = 2
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285 grey = '#BEBEBE'
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286 blue = '#6495ed'
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287 red = '#ecac68'
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288 for el in core_map.iter():
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289 el_id = str(el.get('id'))
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290 if el_id.startswith('R_'):
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291 tmp = d.get(el_id[2:])
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292 if tmp != None:
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293 p_val :float = tmp[0]
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294 f_c = tmp[1]
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295 z_score = tmp[2]
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276
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296
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297 if math.isnan(p_val) or (isinstance(f_c, float) and math.isnan(f_c)): continue
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298
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272
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299 if p_val <= threshold_P_V:
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4
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300 if not isinstance(f_c, str):
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301 if abs(f_c) < ((threshold_F_C - 1) / (abs(threshold_F_C) + 1)): #
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302 col = grey
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303 width = str(minT)
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304 else:
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305 if f_c < 0:
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306 col = blue
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307 elif f_c > 0:
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308 col = red
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309 width = str(max((abs(z_score) * maxT) / max_z_score, minT))
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310 else:
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311 if f_c == '-INF':
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312 col = blue
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313 elif f_c == 'INF':
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314 col = red
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315 width = str(maxT)
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316 dash = 'none'
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317 else:
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318 dash = '5,5'
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319 col = grey
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320 width = str(minT)
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321 el.set('style', fix_style(el.get('style', ""), col, width, dash))
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322 return core_map
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323
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324 def getElementById(reactionId :str, metabMap :ET.ElementTree) -> utils.Result[ET.Element, utils.Result.ResultErr]:
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325 """
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326 Finds any element in the given map with the given ID. ID uniqueness in an svg file is recommended but
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327 not enforced, if more than one element with the exact ID is found only the first will be returned.
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328
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329 Args:
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330 reactionId (str): exact ID of the requested element.
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331 metabMap (ET.ElementTree): metabolic map containing the element.
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332
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333 Returns:
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334 utils.Result[ET.Element, ResultErr]: result of the search, either the first match found or a ResultErr.
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335 """
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336 return utils.Result.Ok(
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337 f"//*[@id=\"{reactionId}\"]").map(
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338 lambda xPath : metabMap.xpath(xPath)[0]).mapErr(
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339 lambda _ : utils.Result.ResultErr(f"No elements with ID \"{reactionId}\" found in map"))
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340 # ^^^ we shamelessly ignore the contents of the IndexError, it offers nothing to the user.
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341
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342 def styleMapElement(element :ET.Element, styleStr :str) -> None:
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343 currentStyles :str = element.get("style", "")
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344 if re.search(r";stroke:[^;]+;stroke-width:[^;]+;stroke-dasharray:[^;]+$", currentStyles):
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345 currentStyles = ';'.join(currentStyles.split(';')[:-3])
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346
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347 element.set("style", currentStyles + styleStr)
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348
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349 class ReactionDirection(Enum):
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350 Unknown = ""
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351 Direct = "_F"
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352 Inverse = "_B"
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353
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354 @classmethod
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355 def fromDir(cls, s :str) -> "ReactionDirection":
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356 # vvv as long as there's so few variants I actually condone the if spam:
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357 if s == ReactionDirection.Direct.value: return ReactionDirection.Direct
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358 if s == ReactionDirection.Inverse.value: return ReactionDirection.Inverse
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359 return ReactionDirection.Unknown
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360
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361 @classmethod
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362 def fromReactionId(cls, reactionId :str) -> "ReactionDirection":
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363 return ReactionDirection.fromDir(reactionId[-2:])
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364
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365 def getArrowBodyElementId(reactionId :str) -> str:
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366 if reactionId.endswith("_RV"): reactionId = reactionId[:-3] #TODO: standardize _RV
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367 elif ReactionDirection.fromReactionId(reactionId) is not ReactionDirection.Unknown: reactionId = reactionId[:-2]
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368 return f"R_{reactionId}"
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369
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370 def getArrowHeadElementId(reactionId :str) -> Tuple[str, str]:
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371 """
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372 We attempt extracting the direction information from the provided reaction ID, if unsuccessful we provide the IDs of both directions.
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373
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374 Args:
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375 reactionId : the provided reaction ID.
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376
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377 Returns:
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378 Tuple[str, str]: either a single str ID for the correct arrow head followed by an empty string or both options to try.
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379 """
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380 if reactionId.endswith("_RV"): reactionId = reactionId[:-3] #TODO: standardize _RV
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381 elif ReactionDirection.fromReactionId(reactionId) is not ReactionDirection.Unknown: return reactionId[:-3:-1] + reactionId[:-2], ""
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382 return f"F_{reactionId}", f"B_{reactionId}"
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383
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384 class ArrowColor(Enum):
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385 """
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386 Encodes possible arrow colors based on their meaning in the enrichment process.
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387 """
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388 Invalid = "#BEBEBE" # gray, fold-change under treshold
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389 UpRegulated = "#ecac68" # red, up-regulated reaction
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390 DownRegulated = "#6495ed" # blue, down-regulated reaction
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391
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392 UpRegulatedInv = "#FF0000"
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393 # ^^^ different shade of red (actually orange), up-regulated net value for a reversible reaction with
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394 # conflicting enrichment in the two directions.
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395
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396 DownRegulatedInv = "#0000FF"
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397 # ^^^ different shade of blue (actually purple), down-regulated net value for a reversible reaction with
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398 # conflicting enrichment in the two directions.
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399
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400 @classmethod
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401 def fromFoldChangeSign(cls, foldChange :float, *, useAltColor = False) -> "ArrowColor":
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402 colors = (cls.DownRegulated, cls.DownRegulatedInv) if foldChange < 0 else (cls.UpRegulated, cls.UpRegulatedInv)
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|
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403 return colors[useAltColor]
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|
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404
|
|
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405 def __str__(self) -> str: return self.value
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406
|
|
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407 class Arrow:
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408 """
|
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|
409 Models the properties of a reaction arrow that change based on enrichment.
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|
410 """
|
|
|
411 MIN_W = 2
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|
412 MAX_W = 12
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413
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414 def __init__(self, width :int, col: ArrowColor, *, isDashed = False) -> None:
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415 """
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416 (Private) Initializes an instance of Arrow.
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417
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418 Args:
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419 width : width of the arrow, ideally to be kept within Arrow.MIN_W and Arrow.MAX_W (not enforced).
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420 col : color of the arrow.
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421 isDashed : whether the arrow should be dashed, meaning the associated pValue resulted not significant.
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422
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423 Returns:
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|
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424 None : practically, a Arrow instance.
|
|
|
425 """
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|
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426 self.w = width
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|
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427 self.col = col
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428 self.dash = isDashed
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429
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430 def applyTo(self, reactionId :str, metabMap :ET.ElementTree, styleStr :str) -> None:
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431 if getElementById(reactionId, metabMap).map(lambda el : styleMapElement(el, styleStr)).isErr:
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432 ERRORS.append(reactionId)
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433
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434 def styleReactionElements(self, metabMap :ET.ElementTree, reactionId :str, *, mindReactionDir = True) -> None:
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435 # If We're dealing with RAS data or in general don't care about the direction of the reaction we only style the arrow body
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436 if not mindReactionDir:
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437 return self.applyTo(getArrowBodyElementId(reactionId), metabMap, self.toStyleStr())
|
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284
|
438
|
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4
|
439 # Now we style the arrow head(s):
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440 idOpt1, idOpt2 = getArrowHeadElementId(reactionId)
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441 self.applyTo(idOpt1, metabMap, self.toStyleStr(downSizedForTips = True))
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442 if idOpt2: self.applyTo(idOpt2, metabMap, self.toStyleStr(downSizedForTips = True))
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443
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|
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444 def getMapReactionId(self, reactionId :str, mindReactionDir :bool) -> str:
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445 """
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446 Computes the reaction ID as encoded in the map for a given reaction ID from the dataset.
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447
|
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448 Args:
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449 reactionId: the reaction ID, as encoded in the dataset.
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|
|
450 mindReactionDir: if True forward (F_) and backward (B_) directions will be encoded in the result.
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|
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451
|
|
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452 Returns:
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|
|
453 str : the ID of an arrow's body or tips in the map.
|
|
|
454 """
|
|
|
455 # we assume the reactionIds also don't encode reaction dir if they don't mind it when styling the map.
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|
|
456 if not mindReactionDir: return "R_" + reactionId
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|
|
457
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|
|
458 #TODO: this is clearly something we need to make consistent in RPS
|
|
|
459 return (reactionId[:-3:-1] + reactionId[:-2]) if reactionId[:-2] in ["_F", "_B"] else f"F_{reactionId}" # "Pyr_F" --> "F_Pyr"
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|
|
460
|
|
|
461 def toStyleStr(self, *, downSizedForTips = False) -> str:
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|
|
462 """
|
|
|
463 Collapses the styles of this Arrow into a str, ready to be applied as part of the "style" property on an svg element.
|
|
|
464
|
|
|
465 Returns:
|
|
|
466 str : the styles string.
|
|
|
467 """
|
|
|
468 width = self.w
|
|
|
469 if downSizedForTips: width *= 0.8
|
|
|
470 return f";stroke:{self.col};stroke-width:{width};stroke-dasharray:{'5,5' if self.dash else 'none'}"
|
|
|
471
|
|
|
472 # vvv These constants could be inside the class itself a static properties, but python
|
|
|
473 # was built by brainless organisms so here we are!
|
|
|
474 INVALID_ARROW = Arrow(Arrow.MIN_W, ArrowColor.Invalid)
|
|
|
475 INSIGNIFICANT_ARROW = Arrow(Arrow.MIN_W, ArrowColor.Invalid, isDashed = True)
|
|
|
476
|
|
|
477 def applyRpsEnrichmentToMap(rpsEnrichmentRes :Dict[str, Union[Tuple[float, FoldChange], Tuple[float, FoldChange, float, float]]], metabMap :ET.ElementTree, maxNumericZScore :float) -> None:
|
|
|
478 """
|
|
|
479 Applies RPS enrichment results to the provided metabolic map.
|
|
|
480
|
|
|
481 Args:
|
|
|
482 rpsEnrichmentRes : RPS enrichment results.
|
|
|
483 metabMap : the metabolic map to edit.
|
|
|
484 maxNumericZScore : biggest finite z-score value found.
|
|
|
485
|
|
|
486 Side effects:
|
|
|
487 metabMap : mut
|
|
|
488
|
|
|
489 Returns:
|
|
|
490 None
|
|
|
491 """
|
|
|
492 for reactionId, values in rpsEnrichmentRes.items():
|
|
|
493 pValue = values[0]
|
|
|
494 foldChange = values[1]
|
|
|
495 z_score = values[2]
|
|
|
496
|
|
276
|
497 if math.isnan(pValue) or (isinstance(foldChange, float) and math.isnan(foldChange)): continue
|
|
|
498
|
|
4
|
499 if isinstance(foldChange, str): foldChange = float(foldChange)
|
|
|
500 if pValue >= ARGS.pValue: # pValue above tresh: dashed arrow
|
|
|
501 INSIGNIFICANT_ARROW.styleReactionElements(metabMap, reactionId)
|
|
|
502 continue
|
|
|
503
|
|
|
504 if abs(foldChange) < (ARGS.fChange - 1) / (abs(ARGS.fChange) + 1):
|
|
|
505 INVALID_ARROW.styleReactionElements(metabMap, reactionId)
|
|
|
506 continue
|
|
|
507
|
|
|
508 width = Arrow.MAX_W
|
|
|
509 if not math.isinf(foldChange):
|
|
|
510 try: width = max(abs(z_score * Arrow.MAX_W) / maxNumericZScore, Arrow.MIN_W)
|
|
|
511 except ZeroDivisionError: pass
|
|
|
512
|
|
|
513 if not reactionId.endswith("_RV"): # RV stands for reversible reactions
|
|
|
514 Arrow(width, ArrowColor.fromFoldChangeSign(foldChange)).styleReactionElements(metabMap, reactionId)
|
|
|
515 continue
|
|
|
516
|
|
|
517 reactionId = reactionId[:-3] # Remove "_RV"
|
|
|
518
|
|
|
519 inversionScore = (values[3] < 0) + (values[4] < 0) # Compacts the signs of averages into 1 easy to check score
|
|
|
520 if inversionScore == 2: foldChange *= -1
|
|
|
521 # ^^^ Style the inverse direction with the opposite sign netValue
|
|
|
522
|
|
|
523 # If the score is 1 (opposite signs) we use alternative colors vvv
|
|
|
524 arrow = Arrow(width, ArrowColor.fromFoldChangeSign(foldChange, useAltColor = inversionScore == 1))
|
|
|
525
|
|
|
526 # vvv These 2 if statements can both be true and can both happen
|
|
|
527 if ARGS.net: # style arrow head(s):
|
|
|
528 arrow.styleReactionElements(metabMap, reactionId + ("_B" if inversionScore == 2 else "_F"))
|
|
|
529
|
|
|
530 if not ARGS.using_RAS: # style arrow body
|
|
|
531 arrow.styleReactionElements(metabMap, reactionId, mindReactionDir = False)
|
|
|
532
|
|
|
533 ############################ split class ######################################
|
|
|
534 def split_class(classes :pd.DataFrame, resolve_rules :Dict[str, List[float]]) -> Dict[str, List[List[float]]]:
|
|
|
535 """
|
|
|
536 Generates a :dict that groups together data from a :DataFrame based on classes the data is related to.
|
|
|
537
|
|
|
538 Args:
|
|
|
539 classes : a :DataFrame of only string values, containing class information (rows) and keys to query the resolve_rules :dict
|
|
|
540 resolve_rules : a :dict containing :float data
|
|
|
541
|
|
|
542 Returns:
|
|
|
543 dict : the dict with data grouped by class
|
|
|
544
|
|
|
545 Side effects:
|
|
|
546 classes : mut
|
|
|
547 """
|
|
|
548 class_pat :Dict[str, List[List[float]]] = {}
|
|
|
549 for i in range(len(classes)):
|
|
|
550 classe :str = classes.iloc[i, 1]
|
|
|
551 if pd.isnull(classe): continue
|
|
|
552
|
|
|
553 l :List[List[float]] = []
|
|
|
554 for j in range(i, len(classes)):
|
|
|
555 if classes.iloc[j, 1] == classe:
|
|
|
556 pat_id :str = classes.iloc[j, 0]
|
|
|
557 tmp = resolve_rules.get(pat_id, None)
|
|
|
558 if tmp != None:
|
|
|
559 l.append(tmp)
|
|
|
560 classes.iloc[j, 1] = None
|
|
|
561
|
|
|
562 if l:
|
|
|
563 class_pat[classe] = list(map(list, zip(*l)))
|
|
|
564 continue
|
|
|
565
|
|
|
566 utils.logWarning(
|
|
|
567 f"Warning: no sample found in class \"{classe}\", the class has been disregarded", ARGS.out_log)
|
|
|
568
|
|
|
569 return class_pat
|
|
|
570
|
|
|
571 ############################ conversion ##############################################
|
|
|
572 #conversion from svg to png
|
|
|
573 def svg_to_png_with_background(svg_path :utils.FilePath, png_path :utils.FilePath, dpi :int = 72, scale :int = 1, size :Optional[float] = None) -> None:
|
|
|
574 """
|
|
|
575 Internal utility to convert an SVG to PNG (forced opaque) to aid in PDF conversion.
|
|
|
576
|
|
|
577 Args:
|
|
|
578 svg_path : path to SVG file
|
|
|
579 png_path : path for new PNG file
|
|
|
580 dpi : dots per inch of the generated PNG
|
|
|
581 scale : scaling factor for the generated PNG, computed internally when a size is provided
|
|
|
582 size : final effective width of the generated PNG
|
|
|
583
|
|
|
584 Returns:
|
|
|
585 None
|
|
|
586 """
|
|
|
587 if size:
|
|
|
588 image = pyvips.Image.new_from_file(svg_path.show(), dpi=dpi, scale=1)
|
|
|
589 scale = size / image.width
|
|
|
590 image = image.resize(scale)
|
|
|
591 else:
|
|
|
592 image = pyvips.Image.new_from_file(svg_path.show(), dpi=dpi, scale=scale)
|
|
|
593
|
|
|
594 white_background = pyvips.Image.black(image.width, image.height).new_from_image([255, 255, 255])
|
|
|
595 white_background = white_background.affine([scale, 0, 0, scale])
|
|
|
596
|
|
|
597 if white_background.bands != image.bands:
|
|
|
598 white_background = white_background.extract_band(0)
|
|
|
599
|
|
|
600 composite_image = white_background.composite2(image, 'over')
|
|
|
601 composite_image.write_to_file(png_path.show())
|
|
|
602
|
|
|
603 #funzione unica, lascio fuori i file e li passo in input
|
|
|
604 #conversion from png to pdf
|
|
|
605 def convert_png_to_pdf(png_file :utils.FilePath, pdf_file :utils.FilePath) -> None:
|
|
|
606 """
|
|
|
607 Internal utility to convert a PNG to PDF to aid from SVG conversion.
|
|
|
608
|
|
|
609 Args:
|
|
|
610 png_file : path to PNG file
|
|
|
611 pdf_file : path to new PDF file
|
|
|
612
|
|
|
613 Returns:
|
|
|
614 None
|
|
|
615 """
|
|
|
616 image = Image.open(png_file.show())
|
|
|
617 image = image.convert("RGB")
|
|
|
618 image.save(pdf_file.show(), "PDF", resolution=100.0)
|
|
|
619
|
|
|
620 #function called to reduce redundancy in the code
|
|
|
621 def convert_to_pdf(file_svg :utils.FilePath, file_png :utils.FilePath, file_pdf :utils.FilePath) -> None:
|
|
|
622 """
|
|
|
623 Converts the SVG map at the provided path to PDF.
|
|
|
624
|
|
|
625 Args:
|
|
|
626 file_svg : path to SVG file
|
|
|
627 file_png : path to PNG file
|
|
|
628 file_pdf : path to new PDF file
|
|
|
629
|
|
|
630 Returns:
|
|
|
631 None
|
|
|
632 """
|
|
|
633 svg_to_png_with_background(file_svg, file_png)
|
|
|
634 try:
|
|
|
635 convert_png_to_pdf(file_png, file_pdf)
|
|
|
636 print(f'PDF file {file_pdf.filePath} successfully generated.')
|
|
|
637
|
|
|
638 except Exception as e:
|
|
|
639 raise utils.DataErr(file_pdf.show(), f'Error generating PDF file: {e}')
|
|
|
640
|
|
|
641 ############################ map ##############################################
|
|
|
642 def buildOutputPath(dataset1Name :str, dataset2Name = "rest", *, details = "", ext :utils.FileFormat) -> utils.FilePath:
|
|
|
643 """
|
|
|
644 Builds a FilePath instance from the names of confronted datasets ready to point to a location in the
|
|
|
645 "result/" folder, used by this tool for output files in collections.
|
|
|
646
|
|
|
647 Args:
|
|
|
648 dataset1Name : _description_
|
|
|
649 dataset2Name : _description_. Defaults to "rest".
|
|
|
650 details : _description_
|
|
|
651 ext : _description_
|
|
|
652
|
|
|
653 Returns:
|
|
|
654 utils.FilePath : _description_
|
|
|
655 """
|
|
|
656 # This function returns a util data structure but is extremely specific to this module.
|
|
|
657 # RAS also uses collections as output and as such might benefit from a method like this, but I'd wait
|
|
|
658 # TODO: until a third tool with multiple outputs appears before porting this to utils.
|
|
|
659 return utils.FilePath(
|
|
|
660 f"{dataset1Name}_vs_{dataset2Name}" + (f" ({details})" if details else ""),
|
|
|
661 # ^^^ yes this string is built every time even if the form is the same for the same 2 datasets in
|
|
|
662 # all output files: I don't care, this was never the performance bottleneck of the tool and
|
|
|
663 # there is no other net gain in saving and re-using the built string.
|
|
|
664 ext,
|
|
146
|
665 prefix = ARGS.output_path)
|
|
4
|
666
|
|
|
667 FIELD_NOT_AVAILABLE = '/'
|
|
|
668 def writeToCsv(rows: List[list], fieldNames :List[str], outPath :utils.FilePath) -> None:
|
|
|
669 fieldsAmt = len(fieldNames)
|
|
|
670 with open(outPath.show(), "w", newline = "") as fd:
|
|
|
671 writer = csv.DictWriter(fd, fieldnames = fieldNames, delimiter = '\t')
|
|
|
672 writer.writeheader()
|
|
|
673
|
|
|
674 for row in rows:
|
|
|
675 sizeMismatch = fieldsAmt - len(row)
|
|
|
676 if sizeMismatch > 0: row.extend([FIELD_NOT_AVAILABLE] * sizeMismatch)
|
|
|
677 writer.writerow({ field : data for field, data in zip(fieldNames, row) })
|
|
|
678
|
|
|
679 OldEnrichedScores = Dict[str, List[Union[float, FoldChange]]] #TODO: try to use Tuple whenever possible
|
|
|
680 def writeTabularResult(enrichedScores : OldEnrichedScores, ras_enrichment: bool, outPath :utils.FilePath) -> None:
|
|
279
|
681 fieldNames = ["ids", "P_Value", "fold change", "average_1", "average_2"]
|
|
4
|
682
|
|
|
683 writeToCsv([ [reactId] + values for reactId, values in enrichedScores.items() ], fieldNames, outPath)
|
|
|
684
|
|
|
685 def temp_thingsInCommon(tmp :Dict[str, List[Union[float, FoldChange]]], core_map :ET.ElementTree, max_z_score :float, dataset1Name :str, dataset2Name = "rest", ras_enrichment = True) -> None:
|
|
|
686 # this function compiles the things always in common between comparison modes after enrichment.
|
|
|
687 # TODO: organize, name better.
|
|
278
|
688 suffix = "RAS" if ras_enrichment else "RPS"
|
|
|
689 details = f"Tabular Result ({suffix})"
|
|
|
690
|
|
|
691 writeTabularResult(tmp, ras_enrichment, buildOutputPath(dataset1Name, dataset2Name, details = details, ext = utils.FileFormat.TSV))
|
|
4
|
692
|
|
|
693 if ras_enrichment:
|
|
|
694 fix_map(tmp, core_map, ARGS.pValue, ARGS.fChange, max_z_score)
|
|
|
695 return
|
|
|
696
|
|
|
697 for reactId, enrichData in tmp.items(): tmp[reactId] = tuple(enrichData)
|
|
|
698 applyRpsEnrichmentToMap(tmp, core_map, max_z_score)
|
|
|
699
|
|
|
700 def computePValue(dataset1Data: List[float], dataset2Data: List[float]) -> Tuple[float, float]:
|
|
|
701 """
|
|
|
702 Computes the statistical significance score (P-value) of the comparison between coherent data
|
|
|
703 from two datasets. The data is supposed to, in both datasets:
|
|
|
704 - be related to the same reaction ID;
|
|
|
705 - be ordered by sample, such that the item at position i in both lists is related to the
|
|
|
706 same sample or cell line.
|
|
|
707
|
|
|
708 Args:
|
|
|
709 dataset1Data : data from the 1st dataset.
|
|
|
710 dataset2Data : data from the 2nd dataset.
|
|
|
711
|
|
|
712 Returns:
|
|
|
713 tuple: (P-value, Z-score)
|
|
|
714 - P-value from a Kolmogorov-Smirnov test on the provided data.
|
|
|
715 - Z-score of the difference between means of the two datasets.
|
|
|
716 """
|
|
|
717 # Perform Kolmogorov-Smirnov test
|
|
|
718 ks_statistic, p_value = st.ks_2samp(dataset1Data, dataset2Data)
|
|
|
719
|
|
|
720 # Calculate means and standard deviations
|
|
|
721 mean1 = np.mean(dataset1Data)
|
|
|
722 mean2 = np.mean(dataset2Data)
|
|
|
723 std1 = np.std(dataset1Data, ddof=1)
|
|
|
724 std2 = np.std(dataset2Data, ddof=1)
|
|
|
725
|
|
|
726 n1 = len(dataset1Data)
|
|
|
727 n2 = len(dataset2Data)
|
|
|
728
|
|
|
729 # Calculate Z-score
|
|
|
730 z_score = (mean1 - mean2) / np.sqrt((std1**2 / n1) + (std2**2 / n2))
|
|
|
731
|
|
|
732 return p_value, z_score
|
|
|
733
|
|
|
734 def compareDatasetPair(dataset1Data :List[List[float]], dataset2Data :List[List[float]], ids :List[str]) -> Tuple[Dict[str, List[Union[float, FoldChange]]], float]:
|
|
|
735 #TODO: the following code still suffers from "dumbvarnames-osis"
|
|
|
736 tmp :Dict[str, List[Union[float, FoldChange]]] = {}
|
|
|
737 count = 0
|
|
|
738 max_z_score = 0
|
|
|
739
|
|
|
740 for l1, l2 in zip(dataset1Data, dataset2Data):
|
|
|
741 reactId = ids[count]
|
|
|
742 count += 1
|
|
|
743 if not reactId: continue # we skip ids that have already been processed
|
|
|
744
|
|
|
745 try: #TODO: identify the source of these errors and minimize code in the try block
|
|
|
746 reactDir = ReactionDirection.fromReactionId(reactId)
|
|
|
747 # Net score is computed only for reversible reactions when user wants it on arrow tips or when RAS datasets aren't used
|
|
|
748 if (ARGS.net or not ARGS.using_RAS) and reactDir is not ReactionDirection.Unknown:
|
|
|
749 try: position = ids.index(reactId[:-1] + ('B' if reactDir is ReactionDirection.Direct else 'F'))
|
|
|
750 except ValueError: continue # we look for the complementary id, if not found we skip
|
|
|
751
|
|
|
752 nets1 = np.subtract(l1, dataset1Data[position])
|
|
|
753 nets2 = np.subtract(l2, dataset2Data[position])
|
|
|
754
|
|
|
755 p_value, z_score = computePValue(nets1, nets2)
|
|
|
756 avg1 = sum(nets1) / len(nets1)
|
|
|
757 avg2 = sum(nets2) / len(nets2)
|
|
|
758 net = fold_change(avg1, avg2)
|
|
|
759
|
|
|
760 if math.isnan(net): continue
|
|
|
761 tmp[reactId[:-1] + "RV"] = [p_value, net, z_score, avg1, avg2]
|
|
|
762
|
|
|
763 # vvv complementary directional ids are set to None once processed if net is to be applied to tips
|
|
|
764 if ARGS.net:
|
|
|
765 ids[position] = None
|
|
|
766 continue
|
|
|
767
|
|
|
768 # fallthrough is intended, regular scores need to be computed when tips aren't net but RAS datasets aren't used
|
|
|
769 p_value, z_score = computePValue(l1, l2)
|
|
|
770 avg = fold_change(sum(l1) / len(l1), sum(l2) / len(l2))
|
|
|
771 if not isinstance(z_score, str) and max_z_score < abs(z_score): max_z_score = abs(z_score)
|
|
277
|
772 tmp[reactId] = [float(p_value), avg, z_score, sum(l1) / len(l1), sum(l2) / len(l2)]
|
|
4
|
773
|
|
|
774 except (TypeError, ZeroDivisionError): continue
|
|
|
775
|
|
|
776 return tmp, max_z_score
|
|
|
777
|
|
151
|
778 def computeEnrichment(class_pat: Dict[str, List[List[float]]], ids: List[str], *, fromRAS=True) -> List[Tuple[str, str, dict, float]]:
|
|
4
|
779 """
|
|
|
780 Compares clustered data based on a given comparison mode and applies enrichment-based styling on the
|
|
|
781 provided metabolic map.
|
|
|
782
|
|
|
783 Args:
|
|
|
784 class_pat : the clustered data.
|
|
|
785 ids : ids for data association.
|
|
|
786 fromRAS : whether the data to enrich consists of RAS scores.
|
|
|
787
|
|
|
788 Returns:
|
|
143
|
789 List[Tuple[str, str, dict, float]]: List of tuples with pairs of dataset names, comparison dictionary, and max z-score.
|
|
|
790
|
|
4
|
791 Raises:
|
|
|
792 sys.exit : if there are less than 2 classes for comparison
|
|
|
793 """
|
|
143
|
794 class_pat = {k.strip(): v for k, v in class_pat.items()}
|
|
|
795 if (not class_pat) or (len(class_pat.keys()) < 2):
|
|
|
796 sys.exit('Execution aborted: classes provided for comparisons are less than two\n')
|
|
|
797
|
|
|
798 enrichment_results = []
|
|
4
|
799
|
|
|
800 if ARGS.comparison == "manyvsmany":
|
|
|
801 for i, j in it.combinations(class_pat.keys(), 2):
|
|
|
802 comparisonDict, max_z_score = compareDatasetPair(class_pat.get(i), class_pat.get(j), ids)
|
|
143
|
803 enrichment_results.append((i, j, comparisonDict, max_z_score))
|
|
4
|
804
|
|
|
805 elif ARGS.comparison == "onevsrest":
|
|
|
806 for single_cluster in class_pat.keys():
|
|
143
|
807 rest = [item for k, v in class_pat.items() if k != single_cluster for item in v]
|
|
4
|
808 comparisonDict, max_z_score = compareDatasetPair(class_pat.get(single_cluster), rest, ids)
|
|
143
|
809 enrichment_results.append((single_cluster, "rest", comparisonDict, max_z_score))
|
|
4
|
810
|
|
|
811 elif ARGS.comparison == "onevsmany":
|
|
|
812 controlItems = class_pat.get(ARGS.control)
|
|
|
813 for otherDataset in class_pat.keys():
|
|
143
|
814 if otherDataset == ARGS.control:
|
|
|
815 continue
|
|
4
|
816 comparisonDict, max_z_score = compareDatasetPair(controlItems, class_pat.get(otherDataset), ids)
|
|
143
|
817 enrichment_results.append((ARGS.control, otherDataset, comparisonDict, max_z_score))
|
|
|
818
|
|
|
819 return enrichment_results
|
|
4
|
820
|
|
143
|
821 def createOutputMaps(dataset1Name: str, dataset2Name: str, core_map: ET.ElementTree) -> None:
|
|
|
822 svgFilePath = buildOutputPath(dataset1Name, dataset2Name, details="SVG Map", ext=utils.FileFormat.SVG)
|
|
4
|
823 utils.writeSvg(svgFilePath, core_map)
|
|
|
824
|
|
|
825 if ARGS.generate_pdf:
|
|
143
|
826 pngPath = buildOutputPath(dataset1Name, dataset2Name, details="PNG Map", ext=utils.FileFormat.PNG)
|
|
|
827 pdfPath = buildOutputPath(dataset1Name, dataset2Name, details="PDF Map", ext=utils.FileFormat.PDF)
|
|
|
828 convert_to_pdf(svgFilePath, pngPath, pdfPath)
|
|
4
|
829
|
|
143
|
830 if not ARGS.generate_svg:
|
|
145
|
831 os.remove(svgFilePath.show())
|
|
4
|
832
|
|
|
833 ClassPat = Dict[str, List[List[float]]]
|
|
|
834 def getClassesAndIdsFromDatasets(datasetsPaths :List[str], datasetPath :str, classPath :str, names :List[str]) -> Tuple[List[str], ClassPat]:
|
|
|
835 # TODO: I suggest creating dicts with ids as keys instead of keeping class_pat and ids separate,
|
|
|
836 # for the sake of everyone's sanity.
|
|
|
837 class_pat :ClassPat = {}
|
|
|
838 if ARGS.option == 'datasets':
|
|
|
839 num = 1 #TODO: the dataset naming function could be a generator
|
|
|
840 for path, name in zip(datasetsPaths, names):
|
|
|
841 name = name_dataset(name, num)
|
|
|
842 resolve_rules_float, ids = getDatasetValues(path, name)
|
|
|
843 if resolve_rules_float != None:
|
|
|
844 class_pat[name] = list(map(list, zip(*resolve_rules_float.values())))
|
|
|
845
|
|
|
846 num += 1
|
|
|
847
|
|
|
848 elif ARGS.option == "dataset_class":
|
|
|
849 classes = read_dataset(classPath, "class")
|
|
|
850 classes = classes.astype(str)
|
|
|
851
|
|
|
852 resolve_rules_float, ids = getDatasetValues(datasetPath, "Dataset Class (not actual name)")
|
|
|
853 if resolve_rules_float != None: class_pat = split_class(classes, resolve_rules_float)
|
|
|
854
|
|
|
855 return ids, class_pat
|
|
|
856 #^^^ TODO: this could be a match statement over an enum, make it happen future marea dev with python 3.12! (it's why I kept the ifs)
|
|
|
857
|
|
|
858 #TODO: create these damn args as FilePath objects
|
|
|
859 def getDatasetValues(datasetPath :str, datasetName :str) -> Tuple[ClassPat, List[str]]:
|
|
|
860 """
|
|
|
861 Opens the dataset at the given path and extracts the values (expected nullable numerics) and the IDs.
|
|
|
862
|
|
|
863 Args:
|
|
|
864 datasetPath : path to the dataset
|
|
|
865 datasetName (str): dataset name, used in error reporting
|
|
|
866
|
|
|
867 Returns:
|
|
|
868 Tuple[ClassPat, List[str]]: values and IDs extracted from the dataset
|
|
|
869 """
|
|
|
870 dataset = read_dataset(datasetPath, datasetName)
|
|
|
871 IDs = pd.Series.tolist(dataset.iloc[:, 0].astype(str))
|
|
|
872
|
|
|
873 dataset = dataset.drop(dataset.columns[0], axis = "columns").to_dict("list")
|
|
|
874 return { id : list(map(utils.Float("Dataset values, not an argument"), values)) for id, values in dataset.items() }, IDs
|
|
|
875
|
|
|
876 ############################ MAIN #############################################
|
|
147
|
877 def main(args:List[str] = None) -> None:
|
|
4
|
878 """
|
|
|
879 Initializes everything and sets the program in motion based on the fronted input arguments.
|
|
|
880
|
|
|
881 Returns:
|
|
|
882 None
|
|
|
883
|
|
|
884 Raises:
|
|
|
885 sys.exit : if a user-provided custom map is in the wrong format (ET.XMLSyntaxError, ET.XMLSchemaParseError)
|
|
|
886 """
|
|
|
887 global ARGS
|
|
146
|
888 ARGS = process_args(args)
|
|
4
|
889
|
|
146
|
890 if not os.path.isdir(ARGS.output_path):
|
|
|
891 os.makedirs(ARGS.output_path)
|
|
4
|
892
|
|
143
|
893 core_map: ET.ElementTree = ARGS.choice_map.getMap(
|
|
4
|
894 ARGS.tool_dir,
|
|
|
895 utils.FilePath.fromStrPath(ARGS.custom_map) if ARGS.custom_map else None)
|
|
143
|
896
|
|
284
|
897 # Prepare enrichment results containers
|
|
|
898 ras_results = []
|
|
|
899 rps_results = []
|
|
|
900
|
|
|
901 # Compute RAS enrichment if requested
|
|
4
|
902 if ARGS.using_RAS:
|
|
284
|
903 ids_ras, class_pat_ras = getClassesAndIdsFromDatasets(
|
|
|
904 ARGS.input_datas, ARGS.input_data, ARGS.input_class, ARGS.names)
|
|
|
905 ras_results = computeEnrichment(class_pat_ras, ids_ras, fromRAS=True)
|
|
|
906
|
|
|
907 # Compute RPS enrichment if requested
|
|
4
|
908 if ARGS.using_RPS:
|
|
284
|
909 ids_rps, class_pat_rps = getClassesAndIdsFromDatasets(
|
|
|
910 ARGS.input_datas_rps, ARGS.input_data_rps, ARGS.input_class_rps, ARGS.names_rps)
|
|
|
911 rps_results = computeEnrichment(class_pat_rps, ids_rps, fromRAS=False)
|
|
|
912
|
|
|
913 # Organize by comparison pairs
|
|
|
914 comparisons: Dict[Tuple[str, str], Dict[str, Tuple]] = {}
|
|
|
915 for i, j, d, mz in ras_results:
|
|
|
916 comparisons[(i, j)] = {'ras': (d, mz), 'rps': None}
|
|
|
917 for i, j, d, mz in rps_results:
|
|
|
918 comparisons.setdefault((i, j), {}).update({'rps': (d, mz)})
|
|
4
|
919
|
|
284
|
920 # For each comparison, create a styled map with RAS bodies and RPS heads
|
|
|
921 for (i, j), res in comparisons.items():
|
|
|
922 map_copy = copy.deepcopy(core_map)
|
|
|
923
|
|
|
924 # Apply RAS styling to arrow bodies
|
|
|
925 if res.get('ras'):
|
|
|
926 tmp_ras, max_z_ras = res['ras']
|
|
|
927 temp_thingsInCommon(tmp_ras, map_copy, max_z_ras, i, j, ras_enrichment=True)
|
|
|
928
|
|
|
929 # Apply RPS styling to arrow heads
|
|
|
930 if res.get('rps'):
|
|
|
931 tmp_rps, max_z_rps = res['rps']
|
|
|
932 # Ensure applyRpsEnrichmentToMap styles only heads; adjust internals if needed
|
|
285
|
933 temp_thingsInCommon(tmp_rps, map_copy, max_z_rps, i, j, ras_enrichment=False)
|
|
284
|
934
|
|
|
935 # Output both SVG and PDF/PNG as configured
|
|
|
936 createOutputMaps(i, j, map_copy)
|
|
143
|
937 print('Execution succeeded')
|
|
4
|
938 ###############################################################################
|
|
|
939 if __name__ == "__main__":
|
|
277
|
940 main()
|
