covplot supports GRangesList

February 28, 2016

(This article was first published on R on Guangchuang Yu, and kindly contributed to R-bloggers)

To answer the issue, I extend the covplot function to support viewing coverage of a list of GRanges objects or bed files.

files <- getSampleFiles()

p <- covplot(peak)

By default, The coverage plot are merged together with different color. Users can separate them to different panels using facet_grid.

col <- c(CBX6='red', CBX7='green')
p + facet_grid(chr ~ .id) + scale_color_manual(values=col) + scale_fill_manual(values=col)

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