Hi R users, I have a question. How can I use for loop to do pair comparisons. For example,
> x<-c(1,2,3) > result<-matrix(data=NA, nrow=choose(3,2), ncol=1) > for(i in 1: length(x)) + { result[i,]<-ifelse(x[i] > x[i+1], yes="Big", no="Small") + result} > result [,1] [1,] "Small" [2,] "Small" [3,] NA I want to compare (1 vs. 2), (1 vs. 3), (2 vs.3) I know I miss something but I just can not get it work. Could anyone give me a hint? Appreciate, Chunhao [[alternative HTML version deleted]] ______________________________________________ R-help@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.