Hi,
I'm having a bit of trouble with 'scales="free"' in the segplot()
function of latticeExtra. Say we need panels for each year, showing
only those counties that are represented in each one:
---<--------------------cut here---------------start------------------->---
library(latticeExtra)
data(USCancerRates)
uscr.w <- subset(USCancerRates, state == "Washington")
uscr.w$year <- gl(4, 10, length=nrow(uscr.w), labels=format(seq(2001, 2004)))
segplot(reorder(factor(county), rate.male) ~ LCL95.male + UCL95.male | year,
data=uscr.w, scales="free")
---<--------------------cut here---------------end--------------------->---
This still plots all levels of county in every panel. Based on a
similar need for dotplot in another thread, the following looked
promising, but gives empty panels:
---<--------------------cut here---------------start------------------->---
segplot(reorder(factor(county), rate.male) ~ LCL95.male + UCL95.male | year,
data=uscr.w, scales="free",
prepanel=function(x, y, z, ...) {
zz <- z[, drop=TRUE]
list(sort(unique(zz)))
},
panel=function(x, y, z, ...) {
zz <- z[, drop=TRUE]
panel.segplot(x, y, zz, ...)
})
---<--------------------cut here---------------end--------------------->---
Is it possible to have only counties for the particular panel (year) in
these plots? Thanks.
Cheers,
--
Seb
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