[BioC] limma package : Error in sigToEnv(signature, fdef) : Trying to ge t slot "signature" from an object of a basic class ("NULL") with no slots

[He, Yiwen (NIH/CIT)]

Hi, I was using an older (11/23/04) version of limma package and it worked
fine for my log ratio data. I just installed the latest version (2/24/05)
but got this error message when I did:

 

> lmFit(data)                  # data is just a matrix of log ratios.

 

Error in sigToEnv(signature, fdef) : Trying to get slot "signature" from an
object of a basic class ("NULL") with no slots

 

Does anybody know why this is happening? Your help is appreciated.

 

Yiwen He

NIH


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