As you can see on ?effects help page, plot.eff() uses
lattice graphics. You can't mix those with traditional
graphics commands. This should work:
plot(allEffects(GSMOD), ask=FALSE)
trellis.focus("panel", 1, 1)
panel.points(y, x)
trellis.unfocus()
-Peter Ehlers
On 2010-03-09 9:37, Grant Gillis wrote:
Thanks in advance for any help.
I am attempting to add points to a plot using the allEffects command in the
effects package. When I try to add the points I get the following error
message:
Error in plot.xy(xy.coords(x, y), type = type, ...) :
plot.new has not been called yet
Strangely, using the code I've pasted below this has worked for me in the
past however figuring out what has changed has proved to be beyond me.
Cheers,
Grant
y<-c(1,3,2,4,5)
x<-c(1,2,3,4,5)
GSMOD<-lm(y~x)
plot(allEffects(GSMOD), ask=F)
points(y, x)
Error in plot.xy(xy.coords(x, y), type = type, ...) :
plot.new has not been called yet
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Peter Ehlers
University of Calgary
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