Sys.setlocale(locale = foo) defaults to category = "LC_ALL"; maybe set aspects of the locale for the R process individually, e.g. as follows:
locales <- c("LC_COLLATE","LC_CTYPE","LC_MONETARY","LC_NUMERIC","LC_TIME");
for (x in locales) { Sys.setlocale(category = x, locale="Japanese_Japan.65001")}
Please observe all warnings from above code snippet and further notes from
locales: Query or Set Aspects of the Locale article:
- Attempts to change the character set (by
Sys.setlocale("LC_CTYPE", ), if that implies a different character set) during a session may not work and are likely to lead to some confusion.
- Setting
"LC_NUMERIC" to any value other than "C" may cause R to function anomalously, so gives a warning.
- Almost all the output routines used by R itself under Windows ignore the setting of
"LC_NUMERIC" since they make use of the Trio library which is not internationalized.
For instance, my locale is Czech so I tried the following code snippet (itemized above loop to see the results and warnings in sequence):
Sys.getlocale(category = "LC_ALL")
Sys.setlocale(category = "LC_COLLATE" , locale="Czech_Czechia.65001")
Sys.setlocale(category = "LC_CTYPE" , locale="Czech_Czechia.65001")
Sys.setlocale(category = "LC_MONETARY", locale="Czech_Czechia.65001")
Sys.setlocale(category = "LC_NUMERIC" , locale="Czech_Czechia.65001")
Sys.setlocale(category = "LC_TIME" , locale="Czech_Czechia.65001")
Sys.getlocale(category = "LC_ALL")
Output (pasted into the RStudio console):
> Sys.getlocale()
[1] "LC_COLLATE=Czech_Czechia.1250;LC_CTYPE=Czech_Czechia.1250;LC_MONETARY=Czech_Czechia.1250;LC_NUMERIC=C;LC_TIME=Czech_Czechia.1250"
> Sys.setlocale(category = "LC_COLLATE" , locale="Czech_Czechia.65001")
[1] "Czech_Czechia.65001"
> Sys.setlocale(category = "LC_CTYPE" , locale="Czech_Czechia.65001")
[1] ""
Warning message:
In Sys.setlocale(category = "LC_CTYPE", locale = "Czech_Czechia.65001") :
OS reports request to set locale to "Czech_Czechia.65001" cannot be honored
> Sys.setlocale(category = "LC_MONETARY", locale="Czech_Czechia.65001")
[1] "Czech_Czechia.65001"
> Sys.setlocale(category = "LC_NUMERIC" , locale="Czech_Czechia.65001")
[1] "Czech_Czechia.65001"
Warning message:
In Sys.setlocale(category = "LC_NUMERIC", locale = "Czech_Czechia.65001") :
setting 'LC_NUMERIC' may cause R to function strangely
> Sys.setlocale(category = "LC_TIME" , locale="Czech_Czechia.65001")
[1] "Czech_Czechia.65001"
> Sys.getlocale(category = "LC_ALL")
[1] "LC_COLLATE=Czech_Czechia.65001;LC_CTYPE=Czech_Czechia.1250;LC_MONETARY=Czech_Czechia.65001;LC_NUMERIC=Czech_Czechia.65001;LC_TIME=Czech_Czechia.65001"
>
