[R] how can i plot dotted regression line shaped with condition using ggplot

[Ista Zahn]

See

?annotate

for help on adding individual points/labels/etc to a plot.

Best,
Ista

On Fri, Oct 19, 2012 at 3:48 PM, autumnlin <jialincau at gmail.com> wrote:
> I would like to add specific point on to the regression line, like
> (x=1),shape=value(1)
> is it possible?
>
>
>
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