search for: dd_ee

Displaying 1 result from an estimated 1 matches for "dd_ee".

2010 Oct 26
4
divide column in a dataframe based on a character
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? so instead of the first row being x y fac char group 1 1...