R help - Nov 2009 - R 2.10 Line Type Issue...

Morning folks (at least here on the western side of the U.S.)...

This morning I constructed a contour plot of some bivariate  
distributions I'm working with. When I attempted to add a second  
contour to the plot using a dashed line (lty=2), R immediately went  
off to la-la land, requiring a force-quit. I finally tied the problem  
down to this statement:

contour(u,v,ci,levels=c(0.30),add=TRUE,lty=2)

I tried specifying lty="dash" as well without any change. The plot  
works with no lty specification (but produces a solid line, of course).

In researching the issue, I learned that the demo, "demo(graphics)",  
should produce a variety of lines on the first plot. On my system, the  
first plot is completely blank.

My system: PowerMac dual-G5, Leopard 10.5.8, R 2.10 fresh install. I  
attempted re-installing with no change.

Any ideas?

Thanks...

-=d

David B. Thompson, Ph.D., P.E., D.WRE, CFM wrote:
> 
> Morning folks (at least here on the western side of the U.S.)...
> 
> This morning I constructed a contour plot of some bivariate 
> distributions I'm working with. When I attempted to add a second
contour
> to the plot using a dashed line (lty=2), R immediately went off to la-la 
> land, requiring a force-quit. I finally tied the problem down to this 
> statement:
> 
> contour(u,v,ci,levels=c(0.30),add=TRUE,lty=2)

Please specify u, v, ci in order to make your example reproducible for us.

Thanks,
Uwe Ligges


> I tried specifying lty="dash" as well without any change. The
plot works
> with no lty specification (but produces a solid line, of course).
> 
> In researching the issue, I learned that the demo,
"demo(graphics)",
> should produce a variety of lines on the first plot. On my system, the 
> first plot is completely blank.
> 
> My system: PowerMac dual-G5, Leopard 10.5.8, R 2.10 fresh install. I 
> attempted re-installing with no change.
> 
> Any ideas?
> 
> Thanks...
> 
> -=d
> 
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