annotate csaw.R @ 9:260c063ab96b draft default tip

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author dktanwar
date Mon, 18 Dec 2017 17:19:41 -0500
parents c2ec7fb35e97
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1 ## How to run tool
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2 # $ Rscript my_r_tool.R
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3 # --input1 input1.csv
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4 # --input2 input2.csv
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5 # --output1 output.csv
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6 # --output2 output2.csv
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7
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8 # Setup R error handling to go to stderr
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9 options(show.error.messages=F, error=function(){cat(geterrmessage(),file=stderr());q("no",1,F)})
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10 # We need to not crash galaxy with an UTF8 error on German LC settings.
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11 loc <- Sys.setlocale("LC_MESSAGES", "en_US.UTF-8")
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12
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13
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14 library("csaw")
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15 library("stringr")
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16 library("data.table")
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17 library("getopt")
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18 library("Rsamtools")
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21 options(stringAsfactors = FALSE, useFancyQuotes = FALSE)
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22 # Take in trailing command line arguments
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24 output <- commandArgs(trailingOnly=TRUE)[2]
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25 inputs <- commandArgs(trailingOnly=TRUE)[1]
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26
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27 print(output)
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28 print(inputs)
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30 # Separate multiple input files into a list of individual files
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31 files <- unlist(strsplit(inputs, ','))
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32
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33 # Index bamfiles
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34 indexBam(files = files)
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35
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36 # Create windows and count reads in them ----
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37 Sys.time()
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38 windows <- windowCounts(files, spacing=150, width=200, bin=F)
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39 Sys.time()
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40
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41 df <- data.frame(rowRanges(windows), stringsAsFactors = F)
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42 df <- df[,c(1:3)]
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43
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44 file_names <- basename(data.frame(colData(windows))$bam.files)
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47 # Final table with all windows and read counts ----
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48 table <- data.frame(df, assay(windows), stringsAsFactors = F, check.names = F)
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49 colnames(table)[4:ncol(table)] <- file_names
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51 # Remove spaces in the table ----
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52 setDT(table)
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53 for (j in names(table)) set(table, j = j, value = table[[trimws(j)]])
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54 table_sp <- data.frame(table)
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55
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56 # Save final table ----
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57 fwrite(x = table_sp, file = output, quote = F, row.names = F, sep = "\t")
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58 dt <- table[,regions:=paste0(seqnames,"-", start, "-", end)]
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59 table_sp <- data.frame(dt)
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61 for(i in 4:(ncol(table_sp)-1)){
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62 tmp <- table_sp[,c(ncol(table_sp), i)]
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63 n <- paste0(colnames(table_sp)[i],".tsv")
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64 fwrite(x = tmp, file = n, quote = F, row.names = F, sep = "\t")
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65 }
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67 # # Save individual files ----
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68 # Sys.time()
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69 # r <- paste(table_sp[,1], table_sp[,2], table_sp[,3], sep = "-")
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70 # Sys.time()
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71 # # r <- apply( table_sp[ ,c(1:3)] , 1 , paste , sep = "-" )
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72 #
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73 # dir <- paste(opt$outdir, "counts_each_sample", sep = "/")
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74 # dir.create(dir)
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75 #
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76 # # cores <- detectCores()
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77 # # cl <- makeCluster(cores)
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78 # # registerDoParallel(cl)
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79 #
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80 # tab <- data.frame(regions = r, table_sp[,4:ncol(table_sp)], stringsAsFactors = F, check.names = F)
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81 #
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82 # # foreach(i = 2:ncol(tab)) %dopar% {
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83 # for(i in 2:ncol(tab)){
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84 # print(i)
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85 # tmp <- data.frame(tab[,c(1,i)], stringsAsFactors = F, check.names = F)
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86 # n <- paste(dir, "/", colnames(tab)[i], ".txt", sep = "")
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87 # # write.table(tmp, xzfile(paste(dir, "/", n, ".txt.xz", sep = "")), sep = "\t", quote = F, row.names = F)
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88 # fwrite(x = tmp, file = n, quote = F, row.names = F, sep = "\t")
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89 # system(paste0("xz -3 -T 12 ", n))
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90 # }
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91 # # stopCluster(cl)
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93 sessionInfo()