I was playing around with the setting of the LANGUAGE variable and am
wondering whether I'm missing something obvious about resetting the
value to its original state once it's been set. I seem to be able to
reset the language for warnings/errors once, but not to change it a
second time (or reset it) once it's been set ... ??
## default (no LANGUAGE set, English locale)
[1] NaN
Warning message:
In sqrt(-1) : NaNs produced
## no complaints, doesn't change (as expected)
> Sys.setenv(LANGUAGE = "en")
> sqrt(-1)
[1] NaN
Warning message:
In sqrt(-1) : NaNs produced
## change to German
> Sys.setenv(LANGUAGE = "de")
> sqrt(-1)
[1] NaN
Warnmeldung:
In sqrt(-1) : NaNs wurden erzeugt
## try to change to Spanish - no luck
## (this does work in a clean session)
> Sys.setenv(LANGUAGE = "es")
> sqrt(-1)
[1] NaN
Warnmeldung:
In sqrt(-1) : NaNs wurden erzeugt
## try resetting to blank
> Sys.setenv(LANGUAGE = "")
> sqrt(-1)
[1] NaN
Warnmeldung:
In sqrt(-1) : NaNs wurden erzeugt
## or back to English explicitly?
> Sys.setenv(LANGUAGE = "en")
> sqrt(-1)
[1] NaN
Warnmeldung:
In sqrt(-1) : NaNs wurden erzeugt