Amen. Ditto for "-999.000", "-999.00" and all of the other ones
that various (usually Fortran) programmers have used. Has the most
recent Fortran standard come around to understanding NA?
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On Wed, 30 Mar 2011, peter dalgaard wrote:
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
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