Dear all I have a table as that. test<-matrix(data=rnorm(100),ncol=10) and I want to find the values that are below my thresholdthreshold<- -0.5and replace them with a -1 instead.
I can of course write a double nested for loop to check one by one elementif (test[i,j]<= threshold) test[i,j]<- -1 but that would be rather inneficient sice I have very large tables. Does R offer any "automation" for matrix data types? I would like to thank you in advance for your replyRegardsAlex [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.