Hi All
I'm fairly new at R so there might be on obvious solution to my problem
with calling the lattice function xyplot( ) from my own function.
The function script is given below.
The problem is that the xyplot() call does not do anything! I just get a
blank graphics window and no error messages.
The simple plot() function call works fine when not commented out so I
know the data is getting in OK and when I run the the same xyplot()
function call outside this function substituting the actual data frame
then xyplot( ) works fine. Comparing the data summary both inside and
outside the function showed that the data is identical. I put the
"require('lattice')" statement in because I thought it might help but it
did'nt.
Any help as to why xyplot() is behaving differently to plot() and what I
need to do to get the function working would be much appreciated.
thanks
Steve
------------------------------------------------------------------------
-----------
Steven G Candy
Applied Statistician
Australian Antarctic Division
203 Channel Highway, KINGSTON
Tasmania 7050
ph +61 3 6232 3135
"plot.fits.casal.trellis"<- function(data.df,xlim,ylim,XLAB,ylab) {
require('lattice')
frame( )
print(summary(data.df))
#plot(y=data.df$Mobs[data.df$year.f=="2004"],
x=data.df$Mage.r[data.df$year.f=="2004"],
# xlab = XLAB, ylab = ylab, ylim=ylim, xlim=xlim, type='p')
xyplot(data.df$Mobs+data.df$Mfit ~ data.df$Mage.r | data.df$year.f,
type=c("p","l"),pch=c("o","e"),cex=1.3,
xlab = XLAB, ylab = ylab, ylim=ylim, xlim=xlim)
}
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