R help - Nov 2011 - Getting unique colours

Hey everyone, 

I am new to R, and I'm making a scatter plot graph where i have a bunch of
plots/points that fall into 9 unique categories. I want each category to
have a unique colour, however, with the coding I have (below), the colour
black is repeated for two of my plot types. Does anyone know a quick way to
get 9 unique colours??

Coding:
plotba = plot (predictedba ~ actualba, col=as.numeric(ecosite), pch=19,
cex=1.5, ylab="Predicted Basal Area (m2/ha-1)", xlab="Actual
Basal Area
(m2/ha-1)")

Thanks!

Here's what it looks like currently:

http://r.789695.n4.nabble.com/file/n4078889/predicted_height.jpeg 

--
View this message in context:
http://r.789695.n4.nabble.com/Getting-unique-colours-tp4078889p4078889.html
Sent from the R help mailing list archive at Nabble.com.

Le mercredi 16 novembre 2011 ? 20:02 -0800, Quercus a ?crit
:
> Hey everyone, 
> 
> I am new to R, and I'm making a scatter plot graph where i have a bunch
of
> plots/points that fall into 9 unique categories. I want each category to
> have a unique colour, however, with the coding I have (below), the colour
> black is repeated for two of my plot types. Does anyone know a quick way to
> get 9 unique colours??
> 
> Coding:
> plotba = plot (predictedba ~ actualba, col=as.numeric(ecosite), pch=19,
> cex=1.5, ylab="Predicted Basal Area (m2/ha-1)", xlab="Actual
Basal Area
> (m2/ha-1)")
> 
> Thanks!
You can use col=rainbow(9). For more choice about the color palette,
also see the RColorBrewer package.

> Here's what it looks like currently:
> 
> http://r.789695.n4.nabble.com/file/n4078889/predicted_height.jpeg 
Sorry, the link doesn't work.

Regards