Hi:
You were close...
library(ggplot2)
m <- mpg
# Set the factor labels with plotmath code (note the ==)
m$drv <- factor(m$drv, labels = c("sigma[0] == sqrt(2)",
"sigma[0] == 2 * sqrt(2)",
"sigma[0] == 3 * sqrt(2)"))
ggplot(m, aes(x = displ, y = cty)) + geom_point() +
facet_grid(. ~ drv, labeller = label_parsed)
Dennis
On Sat, Feb 22, 2014 at 3:24 AM, Lars Bishop wrote:
> Hello,
>
> I would like to show in my facet labels the equivalent in LaTex of
> $\sigma_{0}= \sqrt{2}$. I think I'm close below, but not yet as it shows
> $(\sigma_{0}, \sqrt{2})$
>
> m <- mpg
> levels(m$drv) <- c("sigma[0]=sqrt(2)", "sigma[0]=2 * sqrt(2)", "sigma[0]= 3
> * sqrt(2)")
>
> ggplot(m, aes(x = displ, y = cty)) + geom_point() +
> facet_grid(. ~ drv, labeller = label_parsed)
>
>
> Thanks,
> Lars.
>
> [[alternative HTML version deleted]]
>
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