Thanks to all the comments, here is the answer: If I use it as is, I get Jibbrish:
> a<-"ืืฉื" > a [1] "รฎรนรค"
However, if I encode it in UTF8, I get the correct result:
> a<-enc2utf8( "ืืฉื") > a [1] "ืืฉื"
I want a way to do this without coding.
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