On Mar 30, 2011, at 16:05 , Christopher Desjardins wrote:
>>
>> dat0 <- read.table('tim1.dat', na = -999)
>>
>
> Ah ... yes. I knew that but clearly didn't at the time of my question or
> script writing.
> Thanks,
> Chris
Depending on where your data came from, you could get caught by the fact that
the above is really ...na.strings="-999"... and that is not going to work if
the actual code is (say) -999.00.
Another straightforward option is dat0[dat0 == -999] <- NA
--
Peter Dalgaard
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Email: pd....@cbs.dk Priv: pda...@gmail.com
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