[R] : bquote inside legend()

[stephen sefick]

#Code begin:
# -------------------
a = 2   # result of a function for example
plot(1:10, a*(1:10))

#here you go
legend(1, 20, paste("value", "=" , a, sep=" "), title="Legend" ,bty = 'n')

val <- substitute("value" ==.(a), list(a = a))
legend(6, 5, do.call("expression",list("Legend", val)), bty = 'n')

# -------------------
# Code end

On Mon, Aug 11, 2008 at 12:30 PM, Monica Pisica <pisicandru at hotmail.com> wrote:
>
> Hi,
>
> I have a graph and I would like to write some values inside the legend that were saved in a variable. Please revise the code below in which I've wrote 2 different legends, but I am not happy with either of them. What I want is a legend with tile "Legend" and underneath a line with a name and a value like that: value = 2.
>
> #Code begin:
> # -------------------
> a = 2   # result of a function for example
> plot(1:10, a*(1:10))
>
> legend(1, 20, c("Legend", bquote(value ==.(a))), bty = 'n')
>
> val <- substitute("value" ==.(a), list(a = a))
> legend(6, 5, do.call("expression",list("Legend", val)), bty = 'n')
>
> # -------------------
> # Code end
>
> In the first legend I don't like that value == 2 instead of value = 2, in the second legend, obviously I don't like the period and the brackets around the value of a.
>
> Thanks for any help,
>
> Monica
>
>
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>
>
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