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1 <tool id="fastq_trimmer" name="FASTQ Trimmer" version="1.0.0">
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2 <description>by column</description>
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3 <command interpreter="python">fastq_trimmer.py '$input_file' '$output_file' '${offset_type['left_column_offset']}' '${offset_type['right_column_offset']}' '${offset_type['base_offset_type']}' '${input_file.extension[len( 'fastq' ):]}' '$keep_zero_length'</command>
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4 <inputs>
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5 <param name="input_file" type="data" format="fastqsanger,fastqcssanger" label="FASTQ File"/>
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6 <conditional name="offset_type">
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7 <param name="base_offset_type" type="select" label="Define Base Offsets as" help="Use Absolute for fixed length reads (Illumina, SOLiD)<br>Use Percentage for variable length reads (Roche/454)">
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8 <option value="offsets_absolute" selected="true">Absolute Values</option>
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9 <option value="offsets_percent">Percentage of Read Length</option>
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10 </param>
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11 <when value="offsets_absolute">
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12 <param name="left_column_offset" label="Offset from 5' end" value="0" type="integer" help="Values start at 0, increasing from the left">
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13 <validator type="in_range" message="Base Offsets must be positive" min="0" max="inf"/>
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14 <validator type="expression" message="An integer is required.">int( float( value ) ) == float( value )</validator>
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15 </param>
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16 <param name="right_column_offset" label="Offset from 3' end" value="0" type="integer" help="Values start at 0, increasing from the right">
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17 <validator type="in_range" message="Base Offsets must be positive" min="0" max="inf"/>
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18 <validator type="expression" message="An integer is required.">int( float( value ) ) == float( value )</validator>
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19 </param>
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20 </when>
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21 <when value="offsets_percent">
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22 <param name="left_column_offset" label="Offset from 5' end" value="0" type="float">
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23 <validator type="in_range" message="Base Offsets must be between 0 and 100" min="0" max="100"/>
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24 </param>
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25 <param name="right_column_offset" label="Offset from 3' end" value="0" type="float">
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26 <validator type="in_range" message="Base Offsets must be between 0 and 100" min="0" max="100"/>
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27 </param>
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28 </when>
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29 </conditional>
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30 <param name="keep_zero_length" label="Keep reads with zero length" type="boolean" truevalue="keep_zero_length" falsevalue="exclude_zero_length" selected="False"/>
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31 </inputs>
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32 <outputs>
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33 <data name="output_file" format="input" />
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34 </outputs>
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35 <tests>
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36 <test>
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37 <!-- Do nothing trim -->
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38 <param name="input_file" value="sanger_full_range_original_sanger.fastqsanger" ftype="fastqsanger" />
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39 <param name="base_offset_type" value="offsets_absolute"/>
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40 <param name="left_column_offset" value="0"/>
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41 <param name="right_column_offset" value="0"/>
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42 <param name="keep_zero_length" value="keep_zero_length" />
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43 <output name="output_file" file="sanger_full_range_original_sanger.fastqsanger" />
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44 </test>
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45 <!-- Trim to empty File -->
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46 <test>
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47 <param name="input_file" value="sanger_full_range_original_sanger.fastqsanger" ftype="fastqsanger" />
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48 <param name="base_offset_type" value="offsets_absolute"/>
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49 <param name="left_column_offset" value="30"/>
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50 <param name="right_column_offset" value="64"/>
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51 <param name="keep_zero_length" value="exclude_zero_length" />
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52 <output name="output_file" file="empty_file.dat" />
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53 </test>
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54 <test>
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55 <param name="input_file" value="sanger_full_range_original_sanger.fastqsanger" ftype="fastqsanger" />
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56 <param name="base_offset_type" value="offsets_percent"/>
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57 <param name="left_column_offset" value="50"/>
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58 <param name="right_column_offset" value="50"/>
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59 <param name="keep_zero_length" value="exclude_zero_length" />
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60 <output name="output_file" file="empty_file.dat" />
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61 </test>
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62 <!-- Trim to 4 inner-most bases -->
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63 <test>
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64 <param name="input_file" value="sanger_full_range_original_sanger.fastqsanger" ftype="fastqsanger" />
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65 <param name="base_offset_type" value="offsets_absolute"/>
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66 <param name="left_column_offset" value="45"/>
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67 <param name="right_column_offset" value="45"/>
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68 <param name="keep_zero_length" value="exclude_zero_length" />
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69 <output name="output_file" file="fastq_trimmer_out1.fastqsanger" />
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70 </test>
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71 <test>
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72 <param name="input_file" value="sanger_full_range_original_sanger.fastqsanger" ftype="fastqsanger" />
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73 <param name="base_offset_type" value="offsets_percent"/>
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74 <param name="left_column_offset" value="47.87"/>
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75 <param name="right_column_offset" value="47.87"/>
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76 <param name="keep_zero_length" value="exclude_zero_length" />
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77 <output name="output_file" file="fastq_trimmer_out1.fastqsanger" />
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78 </test>
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79 </tests>
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80 <help>
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81 This tool allows you to trim the ends of reads.
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82
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83 You can specify either absolute or percent-based offsets. Offsets are calculated, starting at 0, from the respective end to be trimmed. When using the percent-based method, offsets are rounded to the nearest integer.
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84
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85 For example, if you have a read of length 36::
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86
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87 @Some FASTQ Sanger Read
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88 CAATATGTNCTCACTGATAAGTGGATATNAGCNCCA
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89 +
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90 =@@.@;B-%?8>CBA@>7@7BBCA4-48%<;;%<B@
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91
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92 And you set absolute offsets of 2 and 9::
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93
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94 @Some FASTQ Sanger Read
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95 ATATGTNCTCACTGATAAGTGGATA
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96 +
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97 @.@;B-%?8>CBA@>7@7BBCA4-4
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98
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99 Or you set percent offsets of 6% and 20% (corresponds to absolute offsets of 2,7 for a read length of 36)::
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100
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101 @Some FASTQ Sanger Read
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102 ATATGTNCTCACTGATAAGTGGATATN
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103 +
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104 @.@;B-%?8>CBA@>7@7BBCA4-48%
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105
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106 -----
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107
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108 .. class:: warningmark
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109
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110 Trimming a color space read will cause any adapter base to be lost.
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111
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112 ------
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113
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114 **Citation**
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115
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116 If you use this tool, please cite `Blankenberg D, Gordon A, Von Kuster G, Coraor N, Taylor J, Nekrutenko A; Galaxy Team. Manipulation of FASTQ data with Galaxy. Bioinformatics. 2010 Jul 15;26(14):1783-5. <http://www.ncbi.nlm.nih.gov/pubmed/20562416>`_
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117
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118
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119 </help>
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120 </tool>
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