[OS X Emacs] multibyte character

[Ravi Valluru]

Dear All,

I am new to Aquamacs, and am using on Mac OS X platform, essentially  
to process R scripts. I got an error for locale, and I changed to  
en_US.UTF-8 using Sys.setlocale("LC_ALL", "en_US.UTF-8") in R GUI  
(within Aquamacs). I also adding extra code to encode the file like  
suffixing (fileEncoding = "latin1").

Now R is reading the file and data correctly, which contains some  
special characters like "µ" (micro), for example,
 >names(data)
  [1] "Geno"          "Treat"         "Pn_µmol.m_.s"  "Rd_µmol.m_.s"


but when I use the factor separately, it is showing some error...

 >data$Pn_µmol.m_.s
Error: invalid multibyte character in parser at line 1

When I use in the R GUI (outside Aquamacs), it is reading correctly. I  
have no idea what is the problem. Can somebody can help me to solve  
this problem.

 > sessionInfo()
R version 2.11.1 (2010-05-31)
i386-apple-darwin9.8.0

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/C

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

other attached packages:
[1] SuppDists_1.1-8 agricolae_1.0-9 gplots_2.8.0    caTools_1.10
[5] bitops_1.0-4.1  gdata_2.7.2     gtools_2.6.2    RODBC_1.3-2
 >

Thanks in advance
__

R VALLURU
Ecophysiologie des Plantes sous Stress Environnementaux (LEPSE),
UMR INRA-SUPAGRO, Institut de Biologie Intégrative des Plantes
2, place Viala, 34060 Montpellier cedex 1, FRANCE
tel +33 (0)4 99 61 29 56
fax +33 (0)4 67 52 21 16

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