Hi all,
I am trying to annotate my peak list using Camera. I get the following error on the first step:
> xsa <- xsAnnotate(xs=xset4,polarity="negative")
Error in x$membership : $ operator not defined for this S4 class
This error occurs on both R 3.1.3 and R 3.1.2
Some googling indicated that the issue is probably due to the using a newer version of R and of igraph 1.0.1. I've tried rolling back to previous versions of both R but have had issues.
Any suggestions?
Thank you,
DF
For reference here is the discussion of the problem: https://support.bioconductor.org/p/69414/ (https://support.bioconductor.org/p/69414/)
Thank you. The solution at the very bottom of that thread worked. I hadn't seen that before.
Cheers
DF