I want to get the relative frequency of cases in a data frame that matches a specified criteria, omiting NA values. This seem so simple, but I can't come up with an effective way.
nrow(data[data$variable>value & !is.na(data$variable),])/nrow(data) works but is very ineffective and CPU consuming when the data frame is large (more than 13000 rows and 400 columns). /S ______________________________________________ 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.
