[R] lattice-dotplot: resize axis

[René Mayer]

dear all,

I want to make a dotplot with ratings from Items in 6 ItemsGroups.
I reordered the items by rating within each group.
I plotted the items by rating conditional on ItemGroup.
The ordering works as I wanted but my y-aches labels (items) within
each ItemGroup are now unequally spaced, e.g., in some panels there is a
gap between one lower rated item and the next higher, to give a picture

items=a,e,f,g

ItemGroup=n
-----------------
g| .
f| .
e| .
|
|
|
a| .
-----------------

How can I correct this? What have I overlooked?

# code i've used (from latticeExtra/utilities/resize panels)
library(latticeExtra)

mean.ratings$item.name <-
with(mean.ratings, reorder(reorder(item, rating),
as.numeric(ItemGroup)))
dpratings <-
dotplot(item.name ~ rating | reorder(ItemGroup, rating),
data = mean.ratings, layout = c(1, 6), xlim=c(1,6),
aspect = .1,
scales = list(y = list(relation = "free", cex=.5)))

## approximate
resizePanels(dpratings,
h = with(mean.ratings, table(reorder(ItemGroup, rating))))

thanks,
René

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[Deepayan Sarkar]

On Wed, Oct 5, 2011 at 5:00 PM, René Mayer
<ma...@psychologie.tu-dresden.de> wrote:
> dear all,
>
> I want to make a dotplot with ratings from Items in 6 ItemsGroups.
> I reordered the items by rating within each group.
> I plotted the items by rating conditional on ItemGroup.
> The ordering works as I wanted but my y-aches labels (items) within each
> ItemGroup are now unequally spaced, e.g., in some panels there is a
> gap between one lower rated item and the next higher, to give a picture
>
> items=a,e,f,g
>
> ItemGroup=n
> -----------------
> g|      .
> f|   .
> e|  .
>  |
>  |
>  |
> a| .
> -----------------
>
>
> How can I correct this? What have I overlooked?

A reproducible example would help.

-Deepayan