On Apr 11, 2012, at 6:28 AM, maxbre wrote:
hi, I just realised I want to go a little further in the control of
the chart
appearance and I would like to have the same number of ticks
displayed in
both axes of all panels
given this code....
xyplot(tv ~ ms | sub_family, data=tm,
#as.table=TRUE,
aspect="xy",
xlab = expression(paste('ms [ fg/', m^3, ' ]', sep = '')),
ylab = expression(paste('tv [ fg/', m^3, ' ]', sep = '')),
scales= list(x=list(relation="free", log=10, cex=0.8),
y=list(relation="free", log=10, cex=0.8)),
I'm wondering if you should be using relation="free" when you have
already set a panel specific range for the x and y limits? I'm
thinking that the panel function may be reversing your earlier
prepanel efforts. (No data offered ... why don't you use one of the
many test datasets in the examples of the lattice package?)
prepanel = function(x, y, subscripts) {
rr<- range(cbind(x,y))
list(xlim = rr, ylim= rr)
},
panel = function(x, y ,subscripts,...) {
panel.xyplot(x, y, cex=0.8,...)
panel.abline(a = 0, b = 1, lty = 2, col ="gray")
panel.text(x, y, labels=tm$name_short[subscripts], cex = 0.8,
pos=3,
offset=0.5, srt=0, adj=c(1,1))
},
subscripts=TRUE,
xscale.components = xscale.components.logpower,
yscale.components = yscale.components.logpower
)
...I have been trying to insert in the 'prepanel' and also in the
'panel'
the statement 'tick.number=5' but this does not seem to have any
effect
some useful hints for this?
thanks a lot
David Winsemius, MD
West Hartford, CT
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