R help - Aug 2003 - Filled triangles in lattice graphics?

Dear R users,

I can get a filled triangle pointing upwards by specifying pch=17 in 
xyplot or lpoints, but how do I get a filled triangle that points downwards?

In the standard plot function it's possible to use 
plot(x,y,pch=25,bg="black"), but bg= doesn't seem to work with
lattice
and lpoints.

Thanks,

Hans Gardfjell
Ecology and Environmental Science
Ume? University, Sweden

Hans Gardfjell wrote:
> Dear R users,
> 
> I can get a filled triangle pointing upwards by specifying pch=17 in 
> xyplot or lpoints, but how do I get a filled triangle that points 
> downwards?
> 
> In the standard plot function it's possible to use 
> plot(x,y,pch=25,bg="black"), but bg= doesn't seem to work
with lattice
> and lpoints.
> 
> Thanks,
> 
> Hans Gardfjell
> Ecology and Environmental Science
> Ume? University, Sweden
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help
> 
> 
In grid package that is underling package of lattice fill color is set 
through "gp" parameter. Try this 
plot(x,y,pch=25,gp=gpar(fill="black",col="black"))