[R] how to specify point symbols in the key on a lattice dotplot

[CALUM POLWART]

Add:

key = list(points=16:17)

Into the dotplot section possibly without the autokey

On Fri, 13 Sep 2024, 08:19 Christopher W. Ryan, <cwr using agencystatistical.com>
wrote:

> I am making a dotplot with lattice, as follows:
>
> dd %>% dotplot( segment ~ transit_time, groups = impact,  data = .,
>                as.table = TRUE,
>                 pch = 16:17,
>                 cex = 1.8,
>                 scales = list(cex = 1.4),
>                auto.key = TRUE)
>
> impact is a factor with two levels.
>
> They key shows 2 open circles, one of each color of my two
> plotting symbols, one for each group. I would like the
> symbols in the key to match the plotting characters in the graph: 16
> (filled circle) for one group and 17 (filled triangle) for the second
> group.  How would I do that? I have not had any success with supplying
> arguments to auto.key, simpleKey, or key. Guess I'm not understanding
> the syntax.
>
> Thanks.
>
> --Chris Ryan
>
> --
> Agency Statistical Consulting, LLC
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