Tuve un problema similar con Octave 4.0.0, cuando lo instalé como Hadi sugirió que recibí este mensaje:
The graphical user interface is disabled by default since it is still buggy on
OS X; use brew with the option --with-gui to enable it.
Octave was compiled with gnuplot; enable it via graphics_toolkit('gnuplot').
All graphics terminals can be used by setting the environment variable GNUTERM
in ~/.octaverc, and building gnuplot with the corresponding options.
setenv('GNUTERM','qt') # Requiers QT; install gnuplot --with-qt
setenv('GNUTERM','x11') # Requires XQuartz; install gnuplot --with-x11
setenv('GNUTERM','wxt') # Requires wxmac; install gnuplot --with-wxmac
setenv('GNUTERM','aqua') # Requires AquaTerm; install gnuplot --with-aquaterm
You may also set this variable from within Octave. For printing the cairo backend
is recommended, i.e., install gnuplot with --with-cairo, and use
print -dpdfcairo figure.pdf
When using the the qt or fltk toolkits then invisible figures do not work because
osmesa does currently not work with the Mac's OpenGL implementation. The usage of
gnuplot is recommened.
Lo que funcionó para mí fue agregar el --with-gui:
brew install octave --with-qt --with-fltk --with-gui
O reinstalar:
brew reinstall octave --with-qt --with-fltk --with-gui