hi all, presumably i have a small request, but i do indeed struggle. i want to use the cut function as follows.
1) imagine two vectors X1 and X2 2) code values of X1 due to it's quantile values (as this is ordinary use of the cut function) 3) code values of X2 due to it's quantile values, by taking the coded values of X1 as factors (AND without having to loop)... most likely a combination of tapply and cut...but example ------------------------------------------------------------------------------------------------------------ # data # data set.seed(100) n<-30 X1 <- rnorm(n, mean=0.7, sd=10) X2 <- rnorm(n, mean=0.3, sd=25) # code X1 values by using cut X1_cut <- factor(cut(X1,quantile(X1),include.lowest=TRUE)) # calculate quantiles given X1_cut X2QuantilesForX1_cut <-tapply(X2,X1_cut,quantile) # display quantiles X2QuantilesForX1_cut # now i want to code X2 values; taking as breaks X2QuantilesForX1_cut; code does not work, just for showing my intention X2_cut <- cut(X1,X2QuantilesForX1_cut, include.lowest=TRUE) ----------------------------------------------------------------------------------------- any help is very much appreciated - calle ______________________________________________ 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.
