library(Design) d <- datadist(mydata); options(datadist='d') f <- lrm(incidence ~ sun*trees) # lrm is for binary or ordinal response plot(f, sun=NA, trees=NA) # add method='image' or 'contour' to get other types of graphs plot(f, sun=NA, trees=NA, fun='plogis') # probability scale
Correction: fun=plogis not 'plogis'. Sorry about that -FH
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