On Sat, Jan 28, 2023 at 2:49 PM Kenneth Knoblauch
<ken.knobla...@inserm.fr> wrote:
>
> Hi,
>
> I'm struggling to find if there is a simple way to make the lines and points
> overlap in a legend for a lattice plot using auto.key. Here is a toy example
> of what doesn't work (for me) as the lines and points are adjacent rather
> than overlapping:
>
> library(lattice)
> d <- data.frame(x = 1:2, y = 1:4, f = factor(letters[1:2]))
>
> xyplot(y ~ x, d, groups = f, type = "b",
> pch = 21:22, fill = c("white", "black"), col = "black",
> par.settings = list(superpose.symbol =
> list(pch = 21:22, fill = c("white", "black"), col = "black"),
> superpose.line = list(col = "black")),
> auto.key = list(space = "right", points = TRUE, lines = TRUE))
Just adding a type = "b" should work (for the lines), so something like:
auto.key = list(space = "right", type = "b",
points = FALSE, lines = TRUE)
BTW, once you specify par.settings, you don't need to specify the
parameters again, so you can drop the second line.
Best,
-Deepayan
>
>
> I've seen a few examples on stack.overflow but I haven't been able to make
> them work, or they seem more complicated then I would think it should be (but
> I don't exclude that I'm fooling myself there).
>
> R version 4.2.2 Patched (2023-01-04 r83564)
> Platform: x86_64-apple-darwin17.0 (64-bit)
> Running under: macOS Catalina 10.15.7
>
> Matrix products: default
> BLAS:
> /Library/Frameworks/R.framework/Versions/4.2/Resources/lib/libRblas.0.dylib
> LAPACK:
> /Library/Frameworks/R.framework/Versions/4.2/Resources/lib/libRlapack.dylib
>
> locale:
> [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
>
> attached base packages:
> [1] stats graphics grDevices utils datasets methods base
>
> other attached packages:
> [1] lattice_0.20-45
>
> loaded via a namespace (and not attached):
> [1] compiler_4.2.2 grid_4.2.2
>
> Thanks for any enlightenment, in advance.
>
> Ken
>
> ___
> Kenneth Knoblauch
> Inserm U1208
> Stem-cell and Brain Research Institute
> 18 avenue du Doyen Lépine
> 69500 Bron
> France
> tel: +33 (0)4 72 91 34 77
> fax: +33 (0)4 72 91 34 61
> portable: +33 (0)6 84 10 64 10
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>
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