R help - Feb 2010 - lty dots pdf issue

I'm trying to redo an old plot with:
>  sessionInfo()
R version 2.11.0 Under development (unstable) (2010-02-09 r51113) 
x86_64-apple-darwin9.8.0 

When I do:


pdf("lty.pdf",height = 6, width = 8)
u <- 1:100/100
y <- matrix(rep(1:10,each = 100),100)
matplot(u,y,lwd = 2,type ="l")
dev.off()

the line types that have dots are difficult to distinguish because the
"dots"
that should appear are rendered as very thin vertical lines and it appears
that the dashes are rendered without the lend "round" feature even
though
par() reports that that is the setting.  I'm viewing all this with Acrobat 9
pro,
but my printer produces something quite consistent with what is viewable
on the screen.  

Apologies in advance if this has an obvious resolution, I didn't see
anything
in the r-help archive.

Roger


url:    www.econ.uiuc.edu/~roger            Roger Koenker
email    rkoenker at uiuc.edu            Department of Economics
vox:     217-333-4558                University of Illinois
fax:       217-244-6678                Urbana, IL 61801

Roger Koenker <rkoenker <at> uiuc.edu>
writes:
> I'm trying to redo an old plot with:
> >  sessionInfo()
> R version 2.11.0 Under development (unstable) (2010-02-09 r51113) 
> x86_64-apple-darwin9.8.0 
> When I do:
> 
> pdf("lty.pdf",height = 6, width = 8)
> u <- 1:100/100
> y <- matrix(rep(1:10,each = 100),100)
> matplot(u,y,lwd = 2,type ="l")
> dev.off()
> 
> the line types that have dots are difficult to distinguish 
because the "dots"
> that should appear are rendered as very thin vertical l
ines and it appears
> that the dashes are rendered without the lend "round"
 feature even though
> par() reports that that is the setting.  I'm viewing all 
this with Acrobat 9 pro,
> but my printer produces something quite consistent 
with what is viewable
> on the screen.  
Hi,

Could this be related to the problem that was driving me crazy last week

https://www.stat.math.ethz.ch/pipermail/r-sig-mac/2010-February/007123.html

but resolved in the latest patched version?

HTH,

Ken

> Apologies in advance if this has an obvious resolution, I didn't see
anything
> in the r-help archive.
> 
> Roger
> 
> url:    www.econ.uiuc.edu/~roger            Roger Koenker
> email    rkoenker <at> uiuc.edu            Department of Economics
> vox:     217-333-4558                University of Illinois
> fax:       217-244-6678                Urbana, IL 61801
> 
>