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

Answer 1

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