ChIPseeker Warning Message

Question

[Jen]

I'm using ChIPseeker and I'm getting the following warning. The package still runs and an output file is generated but I'd like to know what this is telling me -

Answer 1

[ATpoint]

That happens when you merge or compare GRanges objects that have different chromosomes in it. Either your input or the content from org.Mm.eg.db adds these random and unplaced contigs and this triggers the warning. You can ignore that.

[Jen]

Great. Thank you :)