On Apr 28, 2011, at 3:53 PM, Benjamin Caldwell wrote:
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.
If you use "[" instead the NA's will come though:
rw.fire.RW[ shigo.av<50, ]
In fact I generally wrap my logicals in which to avoid such
(mis?)behavior. but you appear to approve of it.
==
David Winsemius, MD
West Hartford, CT
______________________________________________
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.
