Segmentation fault with expression on linux
Hello,
using SuSE 7.0 PIII500 (192MB RAM) and
platform i686-pc-linux-gnu
arch i686
os linux-gnu
system i686, linux-gnu
status
major 1
minor 1.1
year 2000
month August
day 15
language R
also on the same machine with
_
platform i686-pc-linux-gnu
arch i686
os linux-gnu
system i686, linux-gnu
status
major 1
minor 2.0
year 2000
month 12
day 15
language R
your eample runs without any problems.
Greetings
jan
On Mon, 18 Dec 2000, Thomas Petzoldt wrote:
I have a problem, that the plot of mathematical formula sometimes
crashes R on Linux (SuSE 6.2 and 7.0 on a Dual PIII/500 machine with 1GB
RAM). The problem occurs for example in demo("graphics"), i.e. in the
last part were the mathematical symbols are plotted.
There are several circumstances to reproduce this segmentation fault,
but the following is one of the most simple examples. The first two
text() functions do well, but a combination of the two will crash the
system. The problem persists from R 0.99, 1.1.1 and (recently) with 1.2,
but it works fine on Windows (1.1.1).
#----------------------------------------
#The example:
#----------------------------------------
plot(c(0,1),c(0,1),type="n")
text(0.5,0.7,expression(y == e^-frac(x,y))) # o.k.
readline("press return")
text(0.5,0.6,expression(y == frac(x,sigma))) # o.k.
readline("press return")
text(0.5,0.5,expression(y == e^-frac(x,sigma))) #segmentation fault
#----------------------------------------
Any idea?
Thank you very much!
Thomas Petzoldt
--
Dresden University of Technology
Institute of Hydrobiology
http://www.tu-dresden.de/fghhihb/
mailto:petzoldt at rcs.urz.tu-dresden.de
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