On 2012-06-29 11:09, briannamwright wrote:
Hi Mark,
Thanks for your help - I took a look at ?bxp and ?boxplot. I guess I'm just
uncertain about how to specify "z" in bxp(), not sure I'm quite
understanding how the function works.
Just generate the list; see the Value section in ?boxplot.
It seems that all you need is a list consisting of two
components: 'stats', a matrix of the relevant numbers,
and 'names'. Use your data to construct a 5-row, 3-column
matrix. Each column should have, _in the appropriate order_,
the 5 values listed on the help page for boxplot. Your
original post did not specify medians; just make up any
number that falls inside the box and use a transparent
colour for the median line in the plot.
Say you call your matrix M. Then
z <- list(stats = M, names = c("A", "B", "C"))
can be fed to bxp:
bxp(z, medcol = 0, whisklty = "dotted", boxfill = "green")
for example.
Peter Ehlers
Thanks,
Brianna
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