Can't find x11 terminal in gnuplot Octave on Mac OS

Question

I am running Mac OS Mavericks 10.9.4.

Installed Octave 3.8.1 via Homebrew which came with gnuplot 4.6

Have XQuartz 2.7.6 installed.

I restarted my computer after all was done.

In order to plot in octave-cli everyone states that I should just 'set terminal x11' BUT I don't even have x11 listed when I run 'set terminal' in gnuplot

Of course octave-cli will complain that my terminal is unknown.

octave:1> x=1;  octave:2> plot(x);  gnuplot> set terminal aqua enhanced title "Figure 1" size 560 420  font "*,6" dashlength 1                        ^           line 0: unknown or ambiguous terminal type; type just 'set terminal' for a list 

What did I do wrong? How can I debug this situation?

rami@ramis-macbook:~> gnuplot   G N U P L O T  Version 4.6 patchlevel 5    last modified February 2014  Build System: Darwin x86_64  Copyright (C) 1986-1993, 1998, 2004, 2007-2014  Thomas Williams, Colin Kelley and many others  gnuplot home:     http://www.gnuplot.info  faq, bugs, etc:   type "help FAQ"  immediate help:   type "help"  (plot window: hit 'h')    Terminal type set to 'unknown'  gnuplot> set terminal    Available terminal types:             canvas  HTML Canvas object                cgm  Computer Graphics Metafile            context  ConTeXt with MetaFun (for PDF documents)              corel  EPS format for CorelDRAW               dumb  ascii art for anything that prints text                dxf  dxf-file for AutoCad (default size 120x80)              eepic  EEPIC -- extended LaTeX picture environment                emf  Enhanced Metafile format              emtex  LaTeX picture environment with emTeX specials           epslatex  LaTeX picture environment using graphicx package                fig  FIG graphics language for XFIG graphics editor                gif  GIF images using libgd and TrueType fonts               gpic  GPIC -- Produce graphs in groff using the gpic preprocessor            hp2623A  HP2623A and maybe others             hp2648  HP2648 and HP2647               hpgl  HP7475 and relatives [number of pens] [eject]             imagen  Imagen laser printer               jpeg  JPEG images using libgd and TrueType fonts              latex  LaTeX picture environment                lua  Lua generic terminal driver                 mf  Metafont plotting standard                mif  Frame maker MIF 3.00 format                 mp  MetaPost plotting standard               pcl5  HP Designjet 750C, HP Laserjet III/IV, etc. (many options)                png  PNG images using libgd and TrueType fonts         postscript  PostScript graphics, including EPSF embedded files (*.eps)            pslatex  LaTeX picture environment with PostScript \specials              pstex  plain TeX with PostScript \specials           pstricks  LaTeX picture environment with PSTricks macros                qms  QMS/QUIC Laser printer (also Talaris 1200 and others)              regis  REGIS graphics language                svg  W3C Scalable Vector Graphics driver            tek40xx  Tektronix 4010 and others; most TEK emulators            tek410x  Tektronix 4106, 4107, 4109 and 420X terminals            texdraw  LaTeX texdraw environment               tgif  TGIF X11 [mode] [x,y] [dashed] ["font" [fontsize]]               tikz  TeX TikZ graphics macros via the lua script driver           tkcanvas  Tk/Tcl canvas widget [perltk] [interactive]               tpic  TPIC -- LaTeX picture environment with tpic \specials            unknown  Unknown terminal type - not a plotting device  Press return for more:                 vttek  VT-like tek40xx terminal emulator              xterm  Xterm Tektronix 4014 Mode 

Answer 1

I found the answer here. Basically gnuplot needs to be reinstalled as:

brew reinstall gnuplot --with-x11 

This page also helps with troubleshooting Octave installation on Mavericks.

Answer 2

On El Capitan it shows error. So here's what you do:

1. Install Xquartz first...
2. brew reinstall gnuplot --with-qt
3. Open 'Xquartz' from Applications and NOT the 'Terminal'.
4. gnuplot
5. gnuplot > `set terminal xterm 6. plot sin(x)