Hi all, I have a problem with retreaving column from a data.frame that is I have a data.frame named "temp" in that dataframe some column are there whose names are
"IDENTIFIER" "UNIQUEID" "TRIALGROUPSID" "GRPNUMBER" "GRPDESC" "SEXDID" "STDID" "STUDYTYPE" "SDID" "DOSDID" "SOPDID" "SPECIES" i can retreave any column with using command like "temp$STDID" but my problem is the column name i have to get from another xml its comming like "STDID" that one i assigned to a variable named "kk" like kk<-"STDID" but now while i am trying to retreave this column from dataframe temp like temp$kk or with using command paste like paste("temp",kk,sep"$") both the times its giving null result but its having values in table can any one help me how to get column values from dataframe like these cases thanks in advance kiran [[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.