Thanks for your reply!
I have called peaks with MACS2 - and are now trying to figure out how obtain the QC metrics for h3k4me3, h3k27me3 and pol2 domains. I just keep getting the following error:
Saving 7 x 7 in image
Error in `$<-.data.frame`(`*tmp*`, "SCALE_X", value = 1L) :
replacement has 1 row, data has 0
Calls: ChIPQCreport ... facet_train_layout -> facet_train_layout.wrap -> $<- -> $<-.data.frame
In addition: Warning message:
In max(panels$ROW) : no non-missing arguments to max; returning -Inf
Im not at all aware of what the error message is referring to - other than some data are missing - so was just wondering if it might had something to do with MACS2 .xls peak files missing the summit column?