Displaying 1 result from an estimated 1 matches for "ropipolley1999".
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bupipolley1999
2005 Oct 10
1
labels of a conditioning variable in xyplot
...ble (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'
),
labels = c(
'Bupi. Reference 2.',
'Levo. Reference 4.',
'Ropi. Referen...