Re: Calling plot() consistently crashes octave - Why?

[Tatsuro MATSUOKA]

----- Original Message -----

> 
> *Cannot get plot() to work in octave 3.8.2*
> 
> BACKGROUND INFORMATION:
> 
> 
> Am an imtermediate linux user.   Am experienced using both matlab and
> octave.
> 
> Now I just installed octave onto a newly released (Jun 10, 2017)Debian linux
> distro.
> 
> $ uname -a
> Linux neptune 4.9.30 #6 SMP PREEMPT Sun May 28 18:35:23 CEST 2017 x86_64
> GNU/Linux
> 
> Am running GNU Octave, version 3.8.2 in a bash shell, on a 64-bit quad-core
> CPU.   That's the version which #apt-get install octave installed.
> 
> I also installed gnuplot using #apt-get install gnuplot because I thought
> that if plot doesn't work in octave, maybe I could use gnuplot as a separate
> program to plot data saved to a file.
> 
> $ octave
> GNU Octave, version 3.8.2
> Copyright (C) 2014 John W. Eaton and others.
> This is free software; see the source code for copying conditions.
> There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or
> FITNESS FOR A PARTICULAR PURPOSE.  For details, type 'warranty'.
> 
> Octave was configured for "x86_64-pc-linux-gnu".
> 
> Additional information about Octave is available at http://www.octave.org.
> 
> Please contribute if you find this software useful.
> For more information, visit http://www.octave.org/get-involved.html
> 
> Read http://www.octave.org/bugs.html to learn how to submit bug reports.
> For information about changes from previous versions, type 'news'.
> 
> octave:1> graphics_toolkit
> ans = gnuplot
> octave:2> who
> Variables in the current scope:
> 
> ans
> 
> octave:3> pkg describe all
> error: could not find any INDEX file in directory
> /home/george/octave/gnuplot-1.0.1, try 'pkg rebuild all' to generate 
> missing
> INDEX files
> error: called from:
> error:   /usr/share/octave/3.8.2/m/pkg/private/parse_pkg_idx.m at line 32,
> column 5
> error:   /usr/share/octave/3.8.2/m/pkg/private/describe.m at line 60, column
> 39
> error:   /usr/share/octave/3.8.2/m/pkg/pkg.m at line 526, column 11
> octave:3> pkg rebuild all
> octave:4> pkg describe all
> error: could not find any INDEX file in directory
> /home/george/octave/gnuplot-1.0.1, try 'pkg rebuild all' to generate 
> missing
> INDEX files
> error: called from:
> error:   /usr/share/octave/3.8.2/m/pkg/private/parse_pkg_idx.m at line 32,
> column 5
> error:   /usr/share/octave/3.8.2/m/pkg/private/describe.m at line 60, column
> 39
> error:   /usr/share/octave/3.8.2/m/pkg/pkg.m at line 526, column 11
> octave:4> pkg list
> Package Name  | Version | Installation directory
> --------------+---------+-----------------------
>      gnuplot  |   1.0.1 | /home/george/octave/gnuplot-1.0.1
>         plot *|   1.1.0 | /usr/share/octave/packages/plot-1.1.0
> octave:5> pkg update
> octave:6> exit
> 
> I downloaded gnuplot-1.0.1.tar.gz from
> https://octave.sourceforge.io/gnuplot/ and installed it with octave as
> follows:
>> pkg install matlab_octave/octave/gnuplot-1.0.1.tar.gz
> and got lots of warnings!
> 


It is not necessary to install the gnuplot and plot octave-forge packages to 
use plot command on gnuplot graphics toolkit.

Please post short commands to reproduce your trouble.


Tatsuro