transforming a matrix of logical to 0 and 1 while keeping the dim of matrix
Hi, I am not sure about "correct", but R stores logical values TRUE/FALSE as 1/0 already so simply changing the mode would suffice: mode(x) <- "numeric" alternately x + 0 HTH, Josh
On Wed, Jul 20, 2011 at 8:16 AM, Julian TszKin Chan <cjulian at bu.edu> wrote:
Hi all, Suppose I have a matrix of logical value: x<-matrix(c(TRUE,FALSE,TRUE,FALSE,TRUE,FALSE,TRUE,FALSE,TRUE),nrow=3) I would like to change the value of FALSE to 0 and TRUE to 1. An obvious way to do it is : y<-as.numeric(x) However this method doesn't keep the dim of x. I also need to copy the dim information to y too. attributes(y)<-attributes(x) Is this a correct way to do it in R? Is there any single step function which can do the something? Thanks Regards, TszKin Julian
______________________________________________ R-help at r-project.org 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.
Joshua Wiley Ph.D. Student, Health Psychology University of California, Los Angeles https://joshuawiley.com/