compare more than 2 groups October 03, 2012, 01:52:25 AM Hi,I was wondering whether it is possible to compare more than 2 groups. I have one "test" group and two control groups that I would like to compare. I am most interested in features that differ between the "test group" and both control groups. Now I manually check many EICs to see whether this is the case. It would be somewhat easier if I could have diffreport select these features for me. Extracting these features from the results file generated by "diffreport" is of course relatively easy, but I would then still get many box plots and EICs of features in which I am not so much interested.Koen Quote Selected
Re: compare more than 2 groups Reply #1 – October 03, 2012, 02:53:33 PM Hi,not exactly sure what you mean there. Do you want the features differential between the test group and both control groups ? Then you could assign a single sampclassto both controls. Or are you interested in the intersection of features differential between test and both (or either of ?) the controls ?You can do any logical set operations if you create several individual diffreports between class1 and class2 of your choice(s),and then combine them with and/or: dr1$pvalue>0.05 & dr2$pvalue>0.05Make sure the individual diffreports are unsorted using sortpval=FALSE,so that a feature in row 17 is the same across the diffreports.Yours,Steffen Quote Selected