In R: > factor(300000, levels=1:300000) [1] <NA> 300000 Levels: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 ... 300000
The NA above is undesirable in my view, because 300000 is in 1:300000. I have just got bitten by it. I have figured out why it happens. The results of 'as.character' are different. > as.character(300000) [1] "3e+05" > as.character((1:300000)[300000]) [1] "300000" > sessionInfo() R version 3.1.1 (2014-07-10) Platform: i386-w64-mingw32/i386 (32-bit) locale: [1] LC_COLLATE=English_United States.1252 [2] LC_CTYPE=English_United States.1252 [3] LC_MONETARY=English_United States.1252 [4] LC_NUMERIC=C [5] LC_TIME=English_United States.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base ______________________________________________ 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.
