Re: [R] subgroup-based quantiles

Dear Arun and Rui, thank you for replying, your commands are very helpful. Before you replied, Ive solved the issue with the following approach (for quartiles): myFun <- function(x, GENDER) { x.male <- cut(x, labels=c(1:4), breaks=quantile(split(x,GENDER) $ '1', seq(0,1,.25), na.rm=TRUE),incl

[R] subgroup-based quantiles

Dear R users, given the patient sample with their Gender and Age GENDER Age [1,] 2 45 [2,] 1 58 [3,] 1 54 [4,] 2 71 [5,] 2 64 ... I would like to create an another column which groups the patients wrt Gender specific Age quantiles, following me