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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