i wish to change a column of factor variable to multiple columns of zero-ones
for example, my factor could be ff=c('a','a','b','b','c','c') then I want to have two columns (for three levels) that are 0 0 0 0 1 0 1 0 0 1 0 1 how can i do this fast? [[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.