It seems very simple but I could not find the way. I just want to add two columns of a data frame. I am doing the below operation:
data$C=transform(data, data$A+data$B) However that return as a data frame. I will be glad if ypu help. Thanks a lot -- View this message in context: http://r.789695.n4.nabble.com/adding-two-colmns-of-a-data-frame-tp3454556p3454556.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
