[R] using a variable and a superscript in a legend

[Bert Gunter]

Assuming you are using base graphics, your syntax for adding the legend
appears to be wrong.
legend() is a separate function, not a parameter of plot.default afaics.

The following works for me:

> densren <- 1.25
> plot(1:10)
> legend (x="center", legend =bquote(.(densren) (ind./km)^2))

See ?legend

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 Sun, Oct 20, 2019 at 5:30 AM Patrick Giraudoux <
patrick.giraudoux using univ-fcomte.fr> wrote:

> Dear listers,
>
> I am trying to pass an expression inlcuding a variable and a
> superpscript to a legend. What I want to obtain is e.g. with densren = 1.25
>
> 1.25 ind./km^2
>
> I have tried many variants of the following:
>
> legend=bquote(.(densren) (ind./km)^2)
>
> but if not errors, do obtain
>
> 1.25 (ind./km^2)
>
> hence not what I want (no parenthesis, 2 in superscript...)
>
> Any idea about a correct syntax to get what I need ?
>
> Best,
>
> Patrick
>
>
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>
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