[問題] Abbreviated weekday name 用英文縮寫?

[Edster (Edster)]

[問題敘述]:

strftime(ISOdate(2017,11,13), "%a")
我想要呈現"Mon", 可是跑出的卻是 "週一". 電腦環境如下(中文OS)：
困擾好久, 用英文查過卻沒有, 不知如何用中文查.

[環境敘述]:
> sessionInfo()
R version 3.4.2 (2017-09-28)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

Matrix products: default

locale:
[1] LC_COLLATE=Chinese (Traditional)_Taiwan.950  LC_CTYPE=Chinese
(Traditional)_Taiwan.950
[3] LC_MONETARY=Chinese (Traditional)_Taiwan.950 LC_NUMERIC=C

[5] LC_TIME=Chinese (Traditional)_Taiwan.950

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] magrittr_1.5

loaded via a namespace (and not attached):
[1] compiler_3.4.2 tools_3.4.2
>

[關鍵字]:


選擇性，也許未來有用


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→ celestialgod: Sys.setlocale("LC_TIME", "English")
→ celestialgod: GOOGLE關鍵字給 R weekdays 中文 英文 就可以找到
→ Edster: 謝謝