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 frames" 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. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.