[R] some questions about font

[Bobai Li]

Hi,

I have been using R to create some mathematical and statistical graphs 
for a book manuscript, but I got some problems:

1)  Some web positngs said that default typeface for math expressions is 
italic, but in my system (R 2.01 on WinXP), the default is regular font.
How can I change the default to ilatic?

2)  When use ComputerModern font,  (i.e., 
family=c("CM_regular_10.afm","CM_boldx_10.afm","cmti10.afm","cmbxti10.afm","CM_symbol_10.afm") 
), some accented symbols are not available. For example, 
"expression(hat(beta))" will produce warning message like "font metrics 
unknown for character 94."

Thanks.

Bobai Li

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Assistant Professor
Department of Sociology
Northwestern University
1810 Chicao Ave.,
Evanston, IL 60201