Octave plotting error

Question

I am new to octave, I just tried my first plotting with Octave 3.4.0 when I get the following error. Any help will be much appreciated. The gnuplot version is 4.6

     octave-3.4.0:3> x=1:1:20;
     octave-3.4.0:4> y=sin(x);
     octave-3.4.0:5> plot(x,y)

     gnuplot> set terminal aqua enhanced title "Figure 1" size 560 420  font "*,6"
                  ^
     line 0: unknown or ambiguous terminal type; type just 'set terminal' for a list

The terminal window I am using for octave is the mac X-terminal.

See my complete solution about this problem below: http://stackoverflow.com/a/29907389/115363 — Inanc Gumus, Mar 25 '16 at 15:29

score 19 · Accepted Answer · edited Nov 01 '13 at 20:31

19

Ok, I found the solution to this problem. Just run:

setenv("GNUTERM","X11")

Before you plot anything, e.g.,

plot(x,y)

edited Nov 01 '13 at 20:31

jscs

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answered Apr 23 '13 at 10:21

score 15 · Answer 2 · answered Apr 10 '14 at 13:22

15

You might need to reinstall gnuplot with x11 support:

brew uninstall gnuplot;brew install gnuplot --with-x

answered Apr 10 '14 at 13:22

behas

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I found this necessary on OS X 10.9.4. – Kat Aug 04 '14 at 00:47
Warning: gnuplot: --with-x was deprecated; using --with-x11 instead! – slcott Feb 10 '15 at 23:14
found this necessary on 10.10.3 as well – Shrey Jan 10 '16 at 17:40

score 13 · Answer 3 · answered May 08 '13 at 23:19

13

Also you could add this line to your ~/.octaverc file:

setenv GNUTERM x11

- it works for me on mac os mountain lion.

answered May 08 '13 at 23:19

pupadupa

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Where is that directory? – user2472071 Apr 06 '14 at 19:03

Inanc Gumus · Answer 4 · 2016-10-30T00:25:35.097

4

COMPLETE SOLUTION:

1- Install x11:

brew cask install xquartz

Or, install from here.

2- Reinstall gnuplot:

brew uninstall gnuplot && brew install gnuplot --with-x11

3- Put these lines in ~/.octaverc

setenv("GNUTERM", "x11")
gnuplot_binary("/usr/local/bin/gnuplot")

4- Restart your mac

edited Oct 30 '16 at 00:25

answered Apr 27 '15 at 22:56

Inanc Gumus

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score 2 · Answer 5 · answered Oct 06 '13 at 01:34

2

or put this line into your .profile (or .zshrc whatever):

export GNUTERM=x11

this will make all gunplot invokations (besides Octave) to output to x11.

answered Oct 06 '13 at 01:34

xinthink

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score 1 · Answer 6 · answered Dec 15 '13 at 15:33

1

Just add:

setenv ("GNUTERM", "X11")

to your octaverc file, normally located at /usr/local/share/octave/site/m/startup

answered Dec 15 '13 at 15:33

sharno

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score 1 · Answer 7 · answered Dec 09 '14 at 13:03

1

I added:

setenv("GNUTERM", "qt")

to the octaverc file located in /usr/local/octave/3.8.0/share/octave/3.8.0/m/startup, and then it worked again.

answered Dec 09 '14 at 13:03

neural5torm

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I didn't use brew or macports but used precompiled binaries. And setenv ("GNUTERM", "X11") didn't work. Your solution works just fine. – irudyak Jul 25 '15 at 22:19

score 0 · Answer 8 · answered Mar 27 '14 at 18:41

Just put here. When this error happened on me, I found this post and update my octaverc file with "setenv GNUTERM X11".

Then octave generated another error:

    error: popen2: popen2 (child): unable to start process -- No such file or directory
    error: called from:
    error: /usr/local/Cellar/octave/3.8.0/share/octave/3.8.0/m/plot/util/private/__gnuplot_open_stream__.m at line 30, column 40
    error: /usr/local/Cellar/octave/3.8.0/share/octave/3.8.0/m/plot/util/__gnuplot_drawnow__.m at line 72, column 19
    sh: x11: command not found

And the solution to that was adding gnuplot_binary("usr/YO/bin/gnuplot") to the octaverc file in /usr/local/share/octave/site/m/startup

Now plotting in octave is happy.

Octave plotting error

8 Answers8

COMPLETE SOLUTION:

Linked