[R] Rekeying value denoting NA
parallax at lafn.org
Tue Nov 8 04:10:30 CET 2011
I'm trying to rekey values which denote there is no values, i.e.,
'-999' in a dataset which contains both '-999' and NA entries.
When I try the following command I get the following error:
> data.frame[data.frame$MAR <= -99999,"MAR"] <- NA
"missing values are not allowed in subscripted assignments of data
Example of data:
YEAR JAN FEB MAR ... DEC
1931 5 -999 NA 3
1932 2 1 -999 2
2010 -999 NA 2 1
I've tried to replace the NAs with -999 values first to remove the NA
values, but got the same error.
I'm quite new to R, and these little issues seem to be a stumbling
block. Many thanks for any help you might be able to offer.
More information about the R-help