If `temp' is your data frame and `tuna' is a variable in `temp', then try
subset(temp, is.na(tuna))
-roger
___
UCLA Department of Statistics
[EMAIL PROTECTED]
http://www.stat.ucla.edu/~rpeng
On Wed, 19 Feb 2003, Robert Schick wrote:
> Easy question that I can't find
> Easy question that I can't find an answer for. I'm trying to subset a
> data frame and want to exclude the positive values, i.e. I want the NA
> values.
>
> My data:
> > summary(temp$tuna)
>Min. 1st Qu. MedianMean 3rd Qu.Max.NA's
> 1 2 3 3 4 5
Easy question that I can't find an answer for. I'm trying to subset a
data frame and want to exclude the positive values, i.e. I want the NA
values.
My data:
> summary(temp$tuna)
Min. 1st Qu. MedianMean 3rd Qu.Max.NA's
1 2 3 3 4 51211
Que
