I´m trying to tease out the minimum value from a row in a dataframe where all the variables are dates.
apply(canc[,vec],1,function(x)min(x,na.rm=T)) However it only returns empty strings for the entire dataframe except for one date value (which is not the minimum date). I´ve also tried apply(canc[,vec],1,function(x)max(x,na.rm=T)) which provides values rowwise, but many of them are not in fact the largest in the row. Any advice? Regards, //M ______________________________________________ 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.