# HG changeset patch # User cmmt # Date 1327314367 18000 # Node ID e943b5e80fec71bdf5895c8aec45bdc26494c5b1 # Parent 9cb525f3006025c2203eac13032165b17046b039 Uploaded diff -r 9cb525f30060 -r e943b5e80fec chromatrat.xml --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/chromatrat.xml Mon Jan 23 05:26:07 2012 -0500 @@ -0,0 +1,76 @@ + + for visualizing genome-wide chromatin modifications + chromatrat.py $gffinput $feainput $imgformat $stepwidth '$classboundaries' $upstreamstretch $maxx $tickspacing '$title' $output + + + + + + + + + + + + + + + + + + + + + + + + + + + matplotlib + + + +CHROMATRA T visualizes the enrichment of chromatin modification across genomic features (e.g. all transcripts of a genome) in an unbiased way by accounting for feature length. +Furthermore, CHROMATRA T groups features based on a second characteristic (e.g. transcriptional frequency of transcripts). + +----- + +.. class:: infomark + +**Normalized enrichment scores** + +Enrichment scores must be provided in *GGFv3* format. + +.. class:: infomark + +**Feature descriptions** + +Features must be provided in a *TAB*-delimited format in this order: + +-1. feature name + +-2. chromosome number + +-3. strand + +-4. feature start + +-5. feature end + +-6. feature attribute + +.. class:: infomark + +**Class boundaries** + +Comma-seperated values spanning the *entire* numerical range of feature attributes. Values are interpreted as upper limits of the classes. +Example: Assuming the feature attribute to be transcriptional frequency of transcripts and the attribute value range to be 0.1 up to 85.3 mRNA/h, a proper class boundary specification might look like: "1, 5, 10, 100". +This would partition the range of transcriptional frequencies into 4 classes such that *class 1* would contain all transcripts less or equal to 1 mRNA/h, *class 2* all greater than 1 and less or equal to 5 mRNA/h, *class 3* all greater than 5 and less or equal 10 mRNA/h, and *class 4* all transcripts greater than 10 (and less than 100) mRNA/h. + +.. class:: warningmark + +The last boundary value must be greater or equal to the largest attribute value. + + +