[R] funny arrows
ligges at statistik.uni-dortmund.de
Wed Sep 6 14:47:33 CEST 2000
Peter Dalgaard BSA wrote:
> "Ritter, Christian C SRTCL-CTGAS" <Christian.C.Ritter at OPC.shell.com> writes:
> > The result of
> > > plot(c(-1,1),c(-1,1),type="n")
> > > arrows(0,0,1,1)
> > > arrows(0,0,0,0)
> > is not what I expected. The first arrow is drawn correctly. The second
> > does not collapse to a point but goes from (0,0) off to
> > (-infinity,infinity).
> > I guess something is divided by zero in the internal function.
> R-1.1.1 on Linux behaves OK (if a lonely arrowhead at (0,0) pointing
> left is OK)
R-1.1.1 on WinNT behaves OK (if plotting nothing is OK,
as the length of the arrow also should be 0).
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