On May 6, 2010, at 9:01 PM, LeandroTV wrote:
Hi,
I have a barchart very similar to the example on the function
documetation,
however, I want to sort the bars according one group in one panel.
Reminding:
library(lattice)
barchart(yield ~ variety | site, data = barley,
groups = year, layout = c(1,6),
ylab = "Barley Yield (bushels/acre)", auto.key=list(),
scales = list(x = list(abbreviate = TRUE,
minlength = 5)))
I want to sort the yield value, in "waseca" site (e.g.), according
the group
of 1931. How can I do this???
You can reverse the year factor variable levels before plotting:
barley$year.r <- factor(barley$year, levels=rev(levels(barley$year)) )
... and then use the reversed factor. I don't think it would be fair
to the reader to reverse the positions in just one panel. You did not
say so but I suspect that you wanted to ask something along the lines
of:
sort the plotting order of the "variety" by the yield of the
variety in one of the years, perhaps 1931?
--
David
ml
and provide commented, minimal, self-contained, reproducible code.
David Winsemius, MD
West Hartford, CT
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