search for: rws50

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2011 Apr 28
3
subset without removing NAs
Hi folks, I'm dealing with a dataset with a lot of NAs, and want to use subset on the data without removing the NAs from the the dataframe; e.g. rws50 <- subset(rw.fire.RW,shigo.av<50) This removes instances with NA for the value in addition to anything <50. Any suggestions much appreciated. *Ben Caldwell* [[alternative HTML version deleted]]