Using the Hmisc package, I tried to create an xYplot (single panel
only) and was confused to find that I could not add anything else to
the plot (abline, lines, etc.).
Thankfully, [1] points out panel functions.
This works as expected for panel.abline, but as soon as I'm using
panel.lines (or llines or lpoints) from the "lattice" package (version
0.17-17 with R 2.8.1), it seems that it is not using the coordinate
system that the original plot used, i.e. the graph does not work at all.
My code:
pfunc <- function(x,y,...) {
panel.xYplot(x, y, ...)
panel.abline(h=4.0, col = "grey") # works fine
panel.lines(-d$chosenValveSetting, col="orange") # in the wrong
place
}
xYplot(I(AmountInTank) + I(-UserOutFlow+UserInFlow) + I(EnvirInFlow) ~
Time.Step, data=subset(h, Version=="Linear increase"), nx=F,
method=smean.cl.boot, type='b',lty.bands=c(2,2), ylim=c(-20,20),
panel=pfunc)
What am I doing wrong?
Hmisc 3.6.0, but older versions reacted similarly.
Thanks for your help!
[1] http://tolstoy.newcastle.edu.au/R/help/06/01/18860.html
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