问题
In LuaJIT or in the Torch REPL, I run the commands
require 'gnuplot'
gnuplot.figure()
and I get the error "Gnuplot terminal is not set".
I tried using gnuplot.setterm() with some guesses such as 'x11' and 'qt' as arguments, but get the error "gnuplot does not seem to have this term". Is there somewhere I can get a list of terminal emulators/graphics backends available to gnuplot? Or alternatively, are these errors indicative of some other problem?
回答1:
It turns out that you get this error if you don't have the Gnuplot executable installed.
I didn't check for this problem before because gnuplot.lua (v. 5.1) has an error check for the case of that executable being unavailable - on line 145 - but for some reason it failed to catch the problem.
来源：https://stackoverflow.com/questions/29882271/lua-error-gnuplot-terminal-is-not-set