Re: [R] divide column in a dataframe based on a character

2010-10-26 Thread Brian Diggs
On 10/25/2010 8:56 PM, Daisy Englert Duursma wrote: Hello, If I have a dataframe: example(data.frame) zz<-c("aa_bb","bb_cc","cc_dd","dd_ee","ee_ff","ff_gg","gg_hh","ii_jj","jj_kk","kk_ll") ddd<- cbind(dd, group = zz) and I want to divide the column named group by the "_", how would I do this?

Re: [R] divide column in a dataframe based on a character

2010-10-25 Thread Daisy Englert Duursma
Thanks for the help. Easy as.. On Tue, Oct 26, 2010 at 3:33 PM, David Winsemius wrote: > > On Oct 25, 2010, at 8:56 PM, Daisy Englert Duursma wrote: > >> Hello, >> >> If I have a dataframe: >> >> example(data.frame) >> >> zz<-c("aa_bb","bb_cc","cc_dd","dd_ee","ee_ff","ff_gg","gg_hh","ii_jj","jj_k

Re: [R] divide column in a dataframe based on a character

2010-10-25 Thread David Winsemius
On Oct 25, 2010, at 8:56 PM, Daisy Englert Duursma wrote: Hello, If I have a dataframe: example(data.frame) zz<- c ("aa_bb ","bb_cc ","cc_dd","dd_ee","ee_ff","ff_gg","gg_hh","ii_jj","jj_kk","kk_ll") ddd <- cbind(dd, group = zz) and I want to divide the column named group by the "_", how

Re: [R] divide column in a dataframe based on a character

2010-10-25 Thread Bill.Venables
You are nearly there. example(data.frame) zz <- c("aa_bb","bb_cc","cc_dd","dd_ee","ee_ff", "ff_gg","gg_hh","ii_jj","jj_kk","kk_ll") ddd <- cbind(dd, group = zz) ddd <- within(ddd, { group <- as.character(group) tmp <- do.call(rbind, strsplit(group, "_")) gr