Matt Pocernich said the following on 12/4/2006 12:32 PM:
I an using xyplot in lattice. I have data in a dataframe. Some columns
contains data, each from a different group. Is there a direct way to
specify a range of column names as a grouping variables? Currently, I
am stacking the data and creating a column with names.
Thanks,
Matt
Hi, Matt,
Yes. Try this:
my.data - data.frame(x = 1:10, y1 = 1:10, y2 = 11:20)
xyplot(y1 + y2 ~ x, my.data)
## or if you want y1,y2 in panels
xyplot(y1 + y2 ~ x, my.data, outer = TRUE)
HTH,
--sundar
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