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comparison intersectBed.xml @ 0:b8348686a0b9 draft

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author iuc
date Tue, 04 Nov 2014 01:45:04 -0500
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1 <tool id="bedtools_intersectbed" name="Intersect interval files" version="@WRAPPER_VERSION@.0">
2 <description></description>
3 <macros>
4 <import>macros.xml</import>
5 </macros>
6 <expand macro="requirements" />
7 <expand macro="stdio" />
8 <command>
9 intersectBed
10 #if $inputA.ext == "bam":
11 -abam $inputA
12 #else:
13 -a $inputA
14 #end if
15
16 -b $inputB
17 $split
18 $strand
19 #if str($fraction):
20 -f $fraction
21 #end if
22 $reciprocal
23 $invert
24 $once
25 $header
26 $overlap_mode
27 &gt; $output
28 </command>
29 <inputs>
30 <param format="bed,bam,vcf,gff,gff3" name="inputA" type="data" label="BED/VCF/GFF/BAM file"/>
31 <param format="bed,gff,vcf,gff3" name="inputB" type="data" label="overlap intervals in this BED file?"/>
32
33 <param name="strand" type="select" label="Calculate the intersection based on strandedness?">
34 <option value="" selected="True">Overlaps on either strand</option>
35 <option value="-s">Only overlaps occurring on the **same** strand.</option>
36 <option value="-S">Only overlaps occurring on the **opposite** strand.</option>
37 </param>
38
39 <param name="overlap_mode" type="select" label="What should be written to the output file?">
40 <option value="-wa" selected="True">Write the original entry in A for each overlap.</option>
41 <option value="-wb">Write the original entry in B for each overlap. Useful for knowing what A overlaps. Restricted by the fraction- and reciprocal option.</option>
42 <option value="-wo">Write the original A and B entries plus the number of base pairs of overlap between the two features. Only A features with overlap are reported. Restricted by the fraction- and reciprocal option.</option>
43 <option value="-wao">Write the original A and B entries plus the number of base pairs of overlap between the two features. However, A features w/o overlap are also reported with a NULL B feature and overlap = 0. Restricted by the fraction- and reciprocal option.</option>
44 <option value="-loj">Perform a "left outer join". That is, for each feature in A report each overlap with B. If no overlaps are found, report a NULL feature for B.</option>
45 </param>
46
47 <param name="split" type="boolean" checked="true" truevalue="-split" falsevalue="" label="Treat split/spliced BAM or BED12 entries as distinct BED intervals when computing coverage." help="If set, the coverage will be calculated based the spliced intervals only. For BAM files, this inspects the CIGAR N operation to infer the blocks for computing coverage. For BED12 files, this inspects the BlockCount, BlockStarts, and BlockEnds fields (i.e., columns 10,11,12). If this option is not set, coverage will be calculated based on the interval's START/END coordinates, and would include introns in the case of RNAseq data." />
48 <!-- -f -->
49 <param name="fraction" type="text" optional="true" label="Minimum overlap required as a fraction of the BAM alignment" help="Alignments are only retained if the overlap with the an interval in the BED file comprises at least this fraction of the BAM alignment's length. For example, to require that the overlap affects 50% of the BAM alignment, use 0.50. (-f)"/>
50 <!-- -r -->
51 <param name="reciprocal" type="boolean" checked="false" truevalue="-r" falsevalue="" label="Require reciprocal overlap." help="If set, the overlap between the BAM alignment and the BED interval must affect the above fraction of both the alignment and the BED interval. (-r)" />
52 <!-- -v -->
53 <param name="invert" type="boolean" checked="false" truevalue="-v" falsevalue="" label="Report only those alignments that **do not** overlap the BED file. (-v)"/>
54 <!-- -u -->
55 <param name="once" type="boolean" checked="false" truevalue="-u" falsevalue="" label="Write the original A entry _once_ if _any_ overlaps found in B." help="Just report the fact >=1 hit was found. (-u)" />
56 <!-- -c -->
57 <param name="count" type="boolean" checked="false" truevalue="-c" falsevalue="" label="For each entry in A, report the number of overlaps with B." help="Reports 0 for A entries that have no overlap with B. (-c)" />
58 <!-- header -->
59 <param name="header" type="boolean" checked="false" truevalue="-header" falsevalue="" label="Print the header from the A file prior to results." />
60 <!-- header -->
61 <param name="header" type="boolean" checked="false" truevalue="-header" falsevalue="" label="Print the header from the A file prior to results." />
62 </inputs>
63 <outputs>
64 <data format_source="inputA" name="output" metadata_source="inputA" label="Intersection of ${inputA.name} and ${inputB.name}"/>
65 </outputs>
66 <help>
67
68 **What it does**
69
70 By far, the most common question asked of two sets of genomic features is whether or not any of the features in the two sets “overlap” with one another. This is known as feature intersection. bedtools intersect allows one to screen for overlaps between two sets of genomic features. Moreover, it allows one to have fine control as to how the intersections are reported. bedtools intersect works with both BED/GFF/VCF and BAM files as input.
71
72 .. image:: $PATH_TO_IMAGES/intersect-glyph.png
73
74 .. class:: infomark
75
76 Note that each BAM alignment is treated individually. Therefore, if one end of a paired-end alignment overlaps an interval in the BED file, yet the other end does not, the output file will only include the overlapping end.
77
78 .. class:: infomark
79
80 Note that a BAM alignment will be sent to the output file **once** even if it overlaps more than one interval in the BED file.
81
82 @REFERENCES@
83
84 </help>
85 <expand macro="citations" />
86 </tool>