I've just installed the octave-forge package 2.1.73 on my Gentoo system. I've been using it to plot three dimensional trajectories and this has worked fine until yesterday. I'm getting the following error message:
gnuplot> pl '/tmp/oct-c0PCsd' u 1:2 t "line 1" ^ line 0: Need 1 or 3 columns for cartesian data
octave:15> line 0: warning: Axis range undefined due to improper data values. NaN? Inf?
gnuplot> sp '/tmp/oct-xqbc7x' u 1:2:3 t "line 1" ^ line 0: All points z value undefined
gnuplot> pl '/tmp/oct-AmihG4' u 1:2 t "line 1"
^ line 0: Need 1 or 3 columns for cartesian data
gnuplot> pl '/tmp/oct-AmihG4' u 1:2 t "line 1" ^ line 0: Need 1 or 3 columns for cartesian data
gnuplot> pl '/tmp/oct-AmihG4' u 1:2 t "line 1" ^ line 0: Need 1 or 3 columns for cartesian data
gnuplot> pl '/tmp/oct-AmihG4' u 1:2 t "line 1"
^ line 0: Need 1 or 3 columns for cartesian data
I've not altered the data that has previously worked in plot3.
I have observed the patch from Dimitri Sergatskov that alters the __plt3__.m file, but my system already has that patch in place.
I am very familiar with Matlab, but not with Octave. I wonder if you could assist me in solving this problem? Any assistance would be greatly appreciated.