Dear all, Consider this plot
xyplot(Sepal.Length + Sepal.Width ~ Petal.Length | Species,
data = iris, allow.multiple=T, outer=F,
panel = function(x,y,...) {
panel.xyplot(x,y,...)
}
)
I want to *add* some things to each panel and what I want to add involves using
the data for each panel, so I try to take this subset of data out with
subscripts:
xyplot(Sepal.Length + Sepal.Width ~ Petal.Length | Species,
data = iris, allow.multiple=T, outer=F,
panel = function(x,y,subscripts,...) {
panel.xyplot(x,y,...)
subiris <- iris[subscripts,] # Something using this ...
}
)
and then I get
Error in NextMethod("[") : argument "subscripts" is missing, with no default
Does anyone know how to obtain this??
By the way: The doc on xyplot says: "The value of subscripts becomes slightly
more complicated when allow.multiple is in effect. Details can be found in the
source code of the function latticeParseFormula.". Sure.
Best regards
Søren
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