Hello everyone, I am writing my own function to return the column index of all variables (these are currently character vectors) in a data frame that contain a dollar sign($). A small piece of the data look like this:
can_sta can_zip ind_ite_con ind_uni_con AL 36106 $251,895.80 $22,874.43 AL 35802 $141,373.60 $7,100.00 AL 35201 $273,208.50 $18,193.66 AR 72404 $186,918.00 $25,391.00 AR 72217 $451,127.00 $27,255.23 AR 7.28E+08 $58,336.22 $5,293.82 So far I have: col.id<-function(x) any(grep("$",x)) sapply(cand2,col.id) However, this returns TRUE for all columns (even those that do not contain the $). Any assistance is appreciated. Thank you, Dan [[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.