问题
I'm using Octave 4.0.0 on a fresh Windows 10 installation and the graphics toolkit related functions (such as plot() or hist()) are simply not working. plot() creates a new window that freezes immediately in the GUI and no windows at all in the CLI (Octave crashes in both cases). I made sure that graphics_toolkit() was set to "gnuplot" and not "fltk", but I did not see any improvment. Any suggestion?
回答1:
The first time you use plot, imagesc, or something else that uses plotting functions it will cause Octave to hang for a while (potentially minutes). It may be quicker to plot a small dataset with plot([1 2 3 4]) initially.
After the initial plot, subsequent ones should be quick, even if you reopen Octave or reboot your computer.
This happens consistently using Octave is 4.0.0-4.0.2, and potentially in other versions on Windows 10.
回答2:
Your PC needs to be installed gnuplot separately from SourceForge as Octave gets some errors while installing itself in W8/10.
Here is the link attached. https://sourceforge.net/projects/gnuplot/?source=directory
You don't need to change any installation files.
This should work
回答3:
I have 4.2.0 running on Windows 7. The first time plot takes about a couple of minutes and its faster from then on. The toolkit is "qt".
来源：https://stackoverflow.com/questions/31882510/cannot-use-octave-4-0-0-graphics-toolkit-functions-under-windows-10