Wrong R version? Maybe loaded some other plot definition before your
experiment? Works for me in R-2.11.1.
Uwe Ligges
Am 03.06.2010 23:05, schrieb Fang, Jianwen:
I am developing a S4 class but have had trouble to make setMethod work
in Window 7. I tested an example found in the setMethod manual:
> require(graphics)
setMethod("plot", signature(x="track", y="missing"),
+ function(x, y, ...) plot(slot(x, "x"), slot(x, "y"), ...)
+ )
It gave me:
Error in setMethod("plot", signature(x = "track", y = "missing"),
function(x, :
unused argument(s) (function(x, y, ...) plot(slot(x, "x"), slot(x,
"y"), ...))
It works perfectly fine in Linux. Does anybody know why?
Thanks in advance!
JF
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