This is Key Choe working at a genetics lab in Palo Alto.
Q: Is there any way to change the values stored in the object output from xcmsSet function?
For example, how do I change the rtmed values stored in a xcmsSet function?
Thank you.
A: Yes, you can access the peak and group information that is stored in an xcmsSet object, using e.g. myxcmsset@peaks <- ...
See
help("xcmsSet-class")