[R] Adding loess lines subsetting to each panel in lattice plot

[Bert Gunter]

Try reading ?panel.loess. There is no "subset" argument, so it is of
course ignored.

-- Bert



Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Fri, Aug 12, 2016 at 9:10 AM, Juan Perez via R-help
<r-help at r-project.org> wrote:
> Hello, I've created an xyplot and I want to add a loess line for x (Age)  <=40 and another for values >40. In a way it is similar to this https://stat.ethz.ch/pipermail/r-help/2009-May/390502.html but still not succcessful.
> This is my try:
>
> xyplot(MOE~Age|Species, groups=Site,
>        panel = function(x, y, groups=groups,...) {
>         panel.xyplot(x, y, groups=groups,...)
>         panel.loess(x,y,subset = x <= 40, col="black")         panel.loess(x,y,subset = x >40, col="red")
>               })
> When I run the code it "works" but it plots the loess line for all the data, without subsetting.Any suggestion?
> Thank you
>
>         [[alternative HTML version deleted]]
>
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