Hi David,
You bring up a good question. I am not sure what is the "right" way to
solve it. But here is a simple solution I put together:
x = c(1:10,5)
y = x
x[c(2,3)] <- NA
# reproducing the problem:
y[x==5]
na2F <- function(x) {
x2 <- x
x2[is.na(x)] <- F
x2
}
na2F(x==5)
# "solved"
y[na2F(x==5)]
I'd be happy to see other solutions to it.
With regards,
Tal
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On Thu, Apr 12, 2012 at 12:08 PM, David Studer <stude...@gmail.com> wrote:
> Hello everybody,
>
> I know this is pretty basic stuff, but could anyone explain me how to
> recode a single value of a variable
> into a missing value?
>
> I used to do it like this:
>
> myData[myData$var1==5;"var1"]<-NA # recode value "5" into "NA"
>
> But the column "var1" already contains NAs, which
> results in the following error message:
>
> "missing values are not allowed in subscripted assignments of data frames"
>
> Thank you very much for any advice!
>
> David
>
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>
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>
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