A colleague¹s R program behaved differently when I ran it, and we thought we traced it probably to different results from string comparisons as below, with different R versions. However the platforms also differed. A friend ran it on a few machines and found that the comparison behavior didn¹t correlate with R version, but rather with platform.
I wonder if you¹ve seen this. If it¹s not some setting I¹m unaware of, maybe someone should look into it. Sorry I haven¹t taken the time to read the source code myself. Thanks, Stuart R version 3.0.2 (2013-09-25) -- "Frisbee Sailing" Platform: x86_64-unknown-linux-gnu (64-bit) Sys.getlocale() [1] "LC_CTYPE=en_US.UTF-8;LC_NUMERIC=C;LC_TIME=en_US.UTF-8;LC_COLLATE=en_US.UTF -8;LC_MONETARY=en_US.UTF-8;LC_MESSAGES=en_US.UTF-8;LC_PAPER=en_US.UTF-8;LC_ NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTIFICA TION=C" "-1" > "1" [1] TRUE "-1" <"1" [1] FALSE "1" < "-1" [1] TRUE "1" < "-" [1] FALSE Vs. R version 3.1.1 (2014-07-10) ‹ ³Sock it to Me" Platform: x86_64-redhat-linux-gnu (64-bit) Sys.getlocale() [1] "LC_CTYPE=en_US.utf8;LC_NUMERIC=C;LC_TIME=en_US.utf8;LC_COLLATE=en_US.utf8 ;LC_MONETARY=en_US.utf8;LC_MESSAGES=en_US.utf8;LC_PAPER=en_US.utf8;LC_NAME =C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.utf8;LC_IDENTIFICATION =C" "-1" > "1" [1] FALSE "-1" <"1" [1] TRUE "1" < "-1" [1] FALSE "1" < "-" [1] FALSE ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel