lattice panel fine control

ok thanks again for your reply: this is what I worked out so far
#start code
xyplot(ped.avg ~ tv.avg | family,
? ? ? ? ? ? ? data=mydata,
? ? ? ? ? ? ? strip=strip.custom(bg='white'), col.line=1, main="title",
? ? ? ? ? ? ? xlab = expression(paste('tv [ fg/', m^3, ' ]', sep = '')),
? ? ? ? ? ? ? ? ? ? ? ? ? ylab = expression(paste('ped [ fg/', m^3, ' ]', sep = '')),

? ? ? ? ? ? ? scales= list(x=list(relation="free", log=10),
? ? ? ? ? ? ? ? ? ? ? ? ? ?y=list(relation="free", log=10)
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?),
? ? ? ? ? ? ? ? ? ? ? ? ? as.table=TRUE,

? ? ? ? ? ? ? prepanel = function(x, y, ...) {
? ? ? ?xlim=list(c(1, 3), c(0.2,2.8), c(1.8,3.8),c(1.8,3))
? ? ? ? ? ? ylim=list(c(1, 3), c(0.2,2.8), c(1.8,3.8),c(1.8,3))
? ? ? ?dx=list(c(1.4,1.8,2.2,2.6), c(0.6,1,1.4,1.8,2.2,2.6), c(2.2,2.6,3,3.4,3.8),
c(2.2,2.6,3))
? ? ? ?dy=list(c(1.4,1.8,2.2,2.6), c(0.6,1,1.4,1.8,2.2,2.6), c(2.2,2.6,3,3.4,3.8),
c(2.2,2.6,3))
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?},
? ? ? ? ? ? ? panel = function(x, y,...) {
? ? ? ? ? ? ? ? ?panel.xyplot(x, y, cex=0.5,...)
? ? ? ? ? ? ? ? ?panel.abline(a = 0, b = 1, lty = 2, col ="gray")
? ? ? ? ? ? ? ? ?panel.text(x, y, lab = mydata$name, cex = 0.5, pos=3,
offset=1, srt=90)
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? },
? ? ? ? ? ? ? xscale.components = xscale.components.logpower,
? ? ? ? ? ? ? yscale.components = yscale.components.logpower
? ?)
#end code

but still something is not clear at all to me;
I've been reading the help files but I must confesss that are quite obscure
to me; I would say there is a strange behaviour of this bit of code because
I can not properly get a fine control of each panel x and y axis

?prepanel = function(x, y, ...) {
? ? ? ?xlim=list(c(1, 3), c(0.2,2.8), c(1.8,3.8),c(1.8,3))
? ? ? ? ? ? ylim=list(c(1, 3), c(0.2,2.8), c(1.8,3.8),c(1.8,3))
? ? ? ?dx=list(c(1.4,1.8,2.2,2.6), c(0.6,1,1.4,1.8,2.2,2.6), c(2.2,2.6,3,3.4,3.8),
c(2.2,2.6,3))
? ? ? ?dy=list(c(1.4,1.8,2.2,2.6), c(0.6,1,1.4,1.8,2.2,2.6), c(2.2,2.6,3,3.4,3.8),
c(2.2,2.6,3))
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?},

I would like to have for each panel x and y axis equallly sped and with
equal limits; for some reasons I do not understand at all the aboe code did
not get the wanted result

any help for this?

thank you, this is indeed a good learning session to me

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