Message-ID: <x2btiuuj6u.fsf@blueberry.kubism.ku.dk>
Date: 1999-02-16T21:34:17Z
From: Peter Dalgaard
Subject: graphics bug: type="l" (PR#120)
In-Reply-To: mcw@ln.nimh.nih.gov's message of Tue, 16 Feb 1999 21:33:52 +0100
mcw@ln.nimh.nih.gov writes:
> The following commands illustrate a problem with graphing relatively large
> data sets using the "line" option to plot:
>
> temp <- runif(200000) # or whatever other numbers you like;
> # same thing happens with a sine wave
> plot(1:200000, temp) # everything fine
> plot(1:200000, temp, type="l") # data gets cut off
>
>
> The number of points isn't crucial. The cutoff point appears to be about
> 65,000 points. (70,000 points demonstrates the cutoff; with 50,000 points
> there's no cutoff.)
>
> As far as I can tell, the problem only occurs when using the
> option type="l". It's unaffected by color, line type, and line width.
>
> Matt Wiener
Doesn't happen to me with 0.63.pre-3 on RedHat Linux. I can't offhand
see any documented fixes that would affect this, perhaps there's an OS
difference? Looks a bit like a short integer overrun (65536=2^16)
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk) FAX: (+45) 35327907
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !) To: r-devel-request@stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._