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bpi
2005 Oct 10
1
labels of a conditioning variable in xyplot
I am running R 2.1.1 on a Mac g5 under Mac OS 10.4.2.
I have an xyplot with a single conditioning variable (8 levels) .
Here is the code for the conditioning variable used in the formula
argument of xyplot:
factor(
drugauthoryear,
levels = c(
'bupicapogna1999',
'levobenhamou2003',
'ropicapogna1999',
'ropipolley1999',
'bupipolley1999',
'levopolley2003',
'ropibenhamou2003',
'ropipolley2003'
),...