[R] Plotting Chinese characters

[apepe]

Hi,

I have read some of the documentation relative to character encodings and
non-standard fonts (including previous answered questions and the 2006-2 R
issue), but I am still struggling with very basic plotting of Chinese text.

I am using R for Mac OS X GUI 1.35-dev Leopard build 32-bit.

I have a network, g, of Chinese characters (each node is a Chinese
character) and I can handle it and display it fine within R using package
igraph. For example, the names of the nodes are correctly displayed:

> V(g)$name
  [1] "精" "神" "市" "场" "思" "想" "什" "么" "地" "区" "科" "学" "历" "史" "没" "有" "自"
"己" "影" "响" "改" "革" "关" "这" "一" ....

However, when I try to plot this network, node names display incorrectly. I
noticed that it is not just node names. Also title, axes names, etc do not
display.

For example:
> x<-c(1,2,3)
> plot(x,x,main="title is 精")
outputs the image attached.
http://r.789695.n4.nabble.com/file/n3276545/Rplot.jpg 

What is the simplest way to display these non-standard fonts in a R plot?

Thanks,
Alberto Pepe

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