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| * Update your installation by running {{Codeline|sudo port selfupdate}} and {{Codeline|sudo port upgrade outdated}} in the terminal. | | * Update your installation by running {{Codeline|sudo port selfupdate}} and {{Codeline|sudo port upgrade outdated}} in the terminal. |
| * Run {{Codeline|sudo port install octave}}. | | * Run {{Codeline|sudo port install octave}}. |
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| ====Custom Installation Instructions====
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| For best performance, variability and reliability the custom installation is suggested.
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| '''Preliminary Port Installations'''
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| *The new Octave 4 port relies on the accelerator variant. Unfortunately this variant is known for some problems (see below). A better alternative is the "atlas" port, it is necessary to build it with the here specified variant prior to the Octave port installation: {{Codeline|sudo port install atlas +gcc5}}. This can last for many hours. Do this overnight. If a prior atlas installation failed, do {{Codeline|sudo port clean atlas}} before reinstallation.
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| *Octave depends on arpack, too. Unfortunately arpack is installed with the ''accelerate'' variant by default. The ''accelerate'' variant uses Apple's Vector Libraries which have some known bugs that can cause Octave to crash if using certain functions in arpack. To avoid this install arpack with the ''atlas'' variant instead of the ''accelerate'' variant {{Codeline|sudo port install arpack -accelerate+atlas}}. You can even do this after you installed Octave. The new variant become active by default.
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| '''Octave Installation'''
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| *MacPorts has good support for Octave. A list of what MacPorts has available for Octave is [http://www.macports.org/ports.php?by=name&substr=octave here]. To install the most recent version of Octave, type {{Codeline|sudo port install octave -accelerate+atlas}} at the Terminal's command line. Octave has many dependencies which will be downloaded and installed prior to Octave. The entire installation process can take some time.
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| *Note that {{Codeline|octave-devel}} has been replaced by {{Codeline|octave}}, see [https://trac.macports.org/changeset/114034 MacPorts Revision 114034].
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| *The variant installed may be important to the user's experience. The available variants for {{Codeline|octave}} are displayed by typing {{Codeline|port variants octave}}. In MacPorts 2.3.4 the variants ''accelerate'', ''app'', ''docs'', ''fltk'', ''gfortran'', ''graphicsmagic'', ''qt4gui'' and ''sound'' are installed by default (marked with '+' sign in {{Codeline|port variants octave}} output). If you need Java support add the new Java variant (+java). A installed Java JRE is mandatory. Go To the Oracle [https://www.java.com/ Java website] for Download. The following command works fine: {{Codeline|sudo port install octave -accelerate+atlas+java}}
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| *<s>If Octave crashes when plotting use the Gnuplot graphic toolkit instead of FLTK. Type {{Codeline|graphics_toolkit('gnuplot')}} in Octave before plotting. For using the nicer wxt-terminal of Gnuplot, type {{Codeline|setenv("GNUTERM","wxt")}} in Octave. To make this the standard behavior append both commands in one of Octave's startup files e.g. your {{Codeline|~/.octaverc}}. To close the graphic window of gnuplot use the Octave command {{Codeline|close()}} to get rid of the Gnuplot instance instead of using the close button of the window.</s>
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| *The first plot after startuing Octave 4 can last a while.
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| ====Detailed Installation Instructions====
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| To get detailed instructions from start to end on one page, refer [http://blog.hani-ibrahim.de/en/octave4-mac-os-x-el-capitan-install.html Hani's Omnium Gatherum].
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| ===Homebrew=== | | ===Homebrew=== |