hadley wickham schrieb:
On Wed, Sep 24, 2008 at 8:39 AM, Albin Blaschka
<[EMAIL PROTECTED]> wrote:
[snip]

As I have those categories (cover grasses, cover herbs...) I would like to
assign special colours to each (for example "cover grasses" => dark green,
"cover open soil" => brown ...), but I did not get it so far.
I tried several variations with area_geom, scale_manual but without
success...

You want to modify the scale (the thing that converts data values to
colours), not the geom:
+ scale_fill_manual(values = mycolorscheme)
(And it's fill you want to change, not colour)
This will also update the legend.

Hadley


Thank you very much, it works now - the right keywords were the problem: it seems I went wrong because for me "scale" had only a meaning in a spatial context (mother tongue is german), for example scale on a map or scale (range) of an axis...and I was fixed to changeing colours, but fill is now logical...

best wishes,
Albin


--
| Albin Blaschka, Mag.rer.nat.
| Etrichstrasse 26, A-5020 Salzburg
| * www.albinblaschka.info * www.thinkanimal.info *
| - It's hard to live in the mountains, hard but not hopeless!

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