[R-SIG-Mac] problem with plot math

[Ingmar Visser]

Your first example works for me with nice labels including "x bar"
etc, using this configuration:

> sessionInfo()
R version 3.0.2 (2013-09-25)
Platform: x86_64-apple-darwin10.8.0 (64-bit)

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

Best, Ingmar


On Wed, Jan 29, 2014 at 11:39 AM, Roberta Rezende
<roberta.rezende at icloud.com> wrote:
> Hi everyone,
>
> I'm a newbie and I'm studying R.
> I'm using Mavericks 10.9.1, R 3.0.2 with Rstudio.
>
> I've tried this simple example:
>
> x <- rnorm(100)
> y <- x + rnorm(100, sd = 0.5)
> plot(x, y,
>      xlab=substitute(bar(x) == k, list(k=mean(x))),
>      ylab=substitute(bar(y) == k, list(k=mean(y)))
> )
>
> but my plot only has the plot, with no labels at all.
>
> If I try the follow example, it works
>
> plot(0, 0, main = expression(theta == 0),
>      ylab = expression(hat(gamma) == 0),
>      xlab = expression(sum(x[i] * y[i], i==1, n)))
>
> It is like it can't do math, but it can plot values given.
>
> May I have to install something else?
>
> Thank you for your help
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