subset data frame by variable with missing value
On Nov 30, 2012, at 9:27 AM, ramoss <ramine.mossadegh at finra.org> wrote:
Hello, I have a variable in a data frame that contains NA values. I just want to subset so that I get the obs where that variable is missing. In SAS I would do: data missing; set test; if myvalue=' '; run; How can I perform this simple task in R? Thanks in advance for your help.
The easiest is probably: NewDF <- subset(DF, is.na(myvalue)) See ?is.na Regards, Marc Schwartz