On Mon, Oct 11, 2021 at 5:17 PM Luigi Marongiu <marongiu.lu...@gmail.com> wrote:
>
> Hello,
> I am drawing some data with lattice using:
> ```
> library(lattice)
> COLS = c("gold", "forestgreen", "darkslategray3", "purple")
> xyplot(Value ~ Concentration,
> group = Substance, data = inf_avg,
> pch = 16, cex = 1.2, type = "b",
> xlab=expression(bold(paste("Concentration (", mu, "M)"))),
> ylab=expression(bold("Infection rate")),
> col=COLS,
> scales = list(x = list(log = 10, at=c(unique(inf_avg$Concentration))
> )
> ),
> key = list(space="top", columns=4, col = "black",
> points=list(pch=c(16, 16, 16, 16),
> col=COLS,
> text=list(c("6-PN", "8-PN", "IX", "XN")
> )
> )
> ),
> panel = function(x,y) {
> panel.xyplot(x,y)
> errbar()
> }
> )
> ```
> It all works but the legend only shows the colored dots, there is no
> text. Is it something missing from the syntax?
Your text component is nested inside the points component. I think you
want it outside, e.g.,
xyplot(1 ~ 1,
key = list(space="top", columns=4, col = "black",
points=list(pch=c(16, 16, 16, 16),
col=COLS),
text=list(c("6-PN", "8-PN", "IX", "XN"))
))
Best,
-Deepayan
> Thanks
>
> --
> Best regards,
> Luigi
>
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