[R] Lattice: type="p" stopped working in panel.average

[Alexandr Malusek]

Hi,

The behavior of panel.average has changed.  In March 2010, I plotted
the attached r_plotViolinOfAnnualE_old.eps. (I don't know the version
of R). Today, I plotted the attached r_plotViolinOfAnnualE_new.eps
using R version 2.12.0 (2010-10-15). Both figures were produced via
the same script:

...
plot <- bwplot(year ~ Eann, data=df, horizontal = T,
  xlab = "E / mSv",
  ylab = "year",
  box.ratio = 1.5,
  panel=function(...) {
    panel.grid(h=0, v=-1)
    panel.average(fun=max, type="p", pch=3, col="black", ...)
    panel.violin(adjust=0.3, kernel="gaussian", ...)
    panel.average(fun=min, type="p", pch=3, col="black", ...)
    panel.average(fun=mean, type="p", pch=20, col="black", ...)
    panel.average(fun=median, type="p", pch=0, col="black", ...)
  }
)
...

The old version of R plotted points as defined by type="p", the new
version plotted lines. I don't know whether it is a bug or a new
feature. Anyway, is there an easy way of getting the old result with
the new version of R?

Regards,
Alexandr
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