[R] Add encoded special characters (greek characters) as text to plot

Jeff Newmiller jdnewmil at dcn.davis.CA.us
Thu Dec 18 18:48:13 CET 2014

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On December 18, 2014 8:59:47 AM PST, heyi xiao via R-help <r-help at r-project.org> wrote:
>anybody has any hint on this? 
>Subject: Add encoded special characters (greek characters) as text to
> To: r-help at r-project.org
> Date: Wednesday, December 17, 2014, 9:25 PM
> Dear all,
> I read my a character matrix from a text file. Some of them
> have greek characters. To reserve the special characters, I
> used stringsAsFactors=F using read.table. I notice that I
> can’t print these character string using print(), but I
> can use cat():
> > print("LC\246\302")
> [1] "LC\246\302"
> > cat("LC\246\302\n")
> LCβ
> The problem is when I add text to my output plot like:
> text(x,y, labels="LC\246\302")
> I got "LC.. " on my plot. Obviously text function doesn’t
> know what’s "\246\302". I google that encoding, and
> can’t find exact what that is. It doesn’t look like
> ascii or Unicode. Anybody knows what that is?
> Note that I can’t use expression() method to pass these
> special characters because these are read from a text file,
> I just can’t include greek characters manually that way.
> Is there a way that I can output these strings with special
> characters automatically?
> Thank you!
> Heyi
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