Mike,
Try plot(pref, ..., scat1d.opts=list(frac=0.025, lwd=0.3, nhistSpike=i))
where i = 1 to always use spike histograms (default is to use them if n =
2000) or i=1e7 to never use them and to always jitter instead. There are
many other scat1d options you can pass through scat1d.opts.
Frank
Dear colleagues,
I have a question regarding controlling the jitter when plotting
predictions in the rms package. Below I've simulated some data that
reflect what I'm working with. The model predicts a continuous variable
with an ordinal score, a two-level group, and a continuous covariate. Of
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