scales argument in bwplot (lattice)

Hi Peter

A little late but catching up

see ? combineLimits from the latticeExtra package

a very welcome addition in particular when combined with
useOuterStrips with multiple conditioning

Regards

Duncan

Duncan Mackay
Department of Agronomy and Soil Science
University of New England
ARMIDALE NSW 2351
Email: home mackay at northnet.com.au

At 01:29 18/05/2011, you wrote:

On 2011-05-17 06:50, Doran, Harold wrote:

Suppose I have data such as the following

set.seed(12345)
tmp<- data.frame(var1 = rnorm(100), var2 = rnorm(100),
var3=rnorm(100, 10, 30))

tmp1<- data.frame(vars = with(tmp, c(var1, var2, var3)), type = gl(3, 100))

var3 is on a different scale, but I create the following plot,
which looks terrible as a result

bwplot(~ vars|type, tmp1,
                  layout = c(1,3),
)

Of course, I can use the scales = 'free' argument and this looks fine.

bwplot(~ vars|type, tmp1,
                  scales = 'free',
                  layout = c(1,3),
)

My real world data are a little tougher to describe, but follow
a similar pattern. My question is, is there a way to make the
bottom two boxplots to have the *same* scale, but for the top
plot to have its own unique scale?

The scales = 'free' argument permits for each plot to have its
own scale. Perhaps there is a way to generalize this so only
certain plots have a unique scale and all others are on the
same scale.

Does this help:

   bwplot(~ vars|type, layout = c(1,3), data=tmp1
     , scales = 'free'
     , xlim=list(c(-3,3), c(-3,3), c(-60,90))
   )

There's a comment on ?xyplot in the scales section:

  "When relation is "free", xlim or ylim can be a list, ..."

Peter Ehlers

Thanks

Harold

sessionInfo()

R version 2.12.0 (2010-10-15)
Platform: i386-pc-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United
States.1252    LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                           LC_TIME=English_United States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] lattice_0.19-13

loaded via a namespace (and not attached):
[1] grid_2.12.0  tools_2.12.0

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