Hi, I am using SAM (from siggenes_1.2.11 package) method to select genes from a microarray data set. After installing the latest R2.4.0 on my computer, to my surprise the results are totally different from that calculated using R2.1.1. Even the example code doesn't work the same way under these two versions of R. Does anybody know what is going on? Thanks for any suggestions.
library(multtest) data(golub) # golub.cl contains the class labels. golub.cl # Perform a SAM analysis for the two class unpaired case assuming # unequal variances. sam.out<-sam(golub,golub.cl,B=100,rand=123) sam.out # Obtain the Delta plots for the default set of Deltas plot(sam.out) Best Wei Zhao Postdoctoral Research Fellow Department of Human Genetics and Biostatistics University of California, Los Angeles Gonda Neuroscience and Genetics Research Center 695 Charles E. Young Drive South, Box 708822 Los Angeles, CA 90095-7088, USA Email: [EMAIL PROTECTED] Tel:(310)8251677 ---------------------------------------------------------- IMPORTANT WARNING: This email (and any attachments) is only intended for the use of the person or entity to which it is addressed, and may contain information that is privileged and confidential. You, the recipient, are obligated to maintain it in a safe, secure and confidential manner. Unauthorized redisclosure or failure to maintain confidentiality may subject you to federal and state penalties. If you are not the recipient, please immediately notify us by return email, and delete this message from your computer. ---------------------------------------------------------- [[alternative HTML version deleted]] ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.