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comparison tools/filters/randomlines.xml @ 0:9071e359b9a3

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author xuebing
date Fri, 09 Mar 2012 19:37:19 -0500
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1 <tool id="random_lines1" name="Select random lines">
2 <description>from a file</description>
3 <command interpreter="python">randomlines.py $input $num_lines $out_file1</command>
4 <inputs>
5 <param name="num_lines" size="5" type="integer" value="1" label="Randomly select" help="lines"/>
6 <param format="txt" name="input" type="data" label="from"/>
7 </inputs>
8 <outputs>
9 <data format="input" name="out_file1" metadata_source="input"/>
10 </outputs>
11 <tests>
12 <test>
13 <param name="num_lines" value="65"/>
14 <param name="input" value="1.bed"/>
15 <output name="out_file1" file="1.bed"/>
16 </test>
17 </tests>
18 <help>
19
20 **What it does**
21
22 This tool selects N random lines from a file, with no repeats, and preserving ordering.
23
24 -----
25
26 **Example**
27
28 Input File::
29
30 chr7 56632 56652 D17003_CTCF_R6 310 +
31 chr7 56736 56756 D17003_CTCF_R7 354 +
32 chr7 56761 56781 D17003_CTCF_R4 220 +
33 chr7 56772 56792 D17003_CTCF_R7 372 +
34 chr7 56775 56795 D17003_CTCF_R4 207 +
35
36 Selecting 2 random lines might return this::
37
38 chr7 56736 56756 D17003_CTCF_R7 354 +
39 chr7 56775 56795 D17003_CTCF_R4 207 +
40
41 </help>
42 </tool>