[R] triangles point left, filled?

[Jim Lemon]

On 11/01/2011 08:05 PM, Martin Ivanov wrote:
>   Dear R users,
>
> I want to plot not only triangles point up and triangles point down,
> which is easy using the "pch" argument to "points". I want to plot left and right pointing triangles as well. They must be fillable with colour.
>
> I browsed a little in the documentation, tried rotating the up and down pointing triangles, but of no avail. Any suggestions will be appreciated.
>
Hi Martin,
Have a look at the "my.symbols" function in the TeachingDemos package.

Jim