[R] graphing with barchart question

Matthew Bridgman m.bridgman at sbcglobal.net
Mon May 7 19:58:15 CEST 2007

I am graphing data using barchart (barchart(DV ~ IV | subject). I  
have 2 groups of 9 subjects each. How can I easily identify which  
group each subject belongs to? I have been trying to color code them,  
but can't seem to get that to work. Any suggestions would be  

Matt Bridgman

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