bwplot that give the user
control over the placement of the boxes. When used with a positioned
factor, the boxes are placed according to the position associated with
the factor.panel.bwplot.intermediate.hh(x, y, horizontal = TRUE,
transpose=!horizontal,
pch, col,
at=if (horizontal) levels(as.factor(y)) else levels(as.factor(x)), ## S-Plus only
...)bwplot and
panel.bwplot."trellis" bwplot objects to put the response variable
on the vertical axis. R does the equivalent by placing the response
variable on the left side of the "~" ibwplot in S-Plus gets x and
y as numeric. level and position information
is not sent through, therefore we need to specify it here when
non-default positions arpanel.xyplot,
bwplot, interaction2wt,
position