chickadee » octave

octave

Description

Octave extension for Chicken and Gambit Scheme.

Author

Pierre-Alexandre Fournier

Requirements

GNU/Octave and gnuplot have to be installed.

With Chicken Scheme, the posix extension is needed:

 (use posix)

Documentation

The octave egg provides a simple interface for GNU/Octave use in Chicken and Gambit Scheme systems. The egg is meant to be used as a graph utility using the GNU/Octave interface to gnuplot. Comments and contributions are welcomed.

Here are some screenshots.

Usage

To start:

 (octave:start)

To stop:

 (octave:stop)

Example

(use posix octave)

(octave:start)
(octave:version)
(octave:plot '(1 2 3) '(3 2 1))
(octave:title "Simple plot")
(octave:xlabel "xbar")
(octave:ylabel "ybar")
(octave:grid "on")
(octave:grid "off")
(octave:semilogx '(1 2 3) '(3 2 1))
(octave:title "SemilogX")
(octave:semilogy '(1 2 3) '(3 2 1))
(octave:title "SemilogY")
(octave:figure)
(octave:loglog '(1 1.5 211.8) '(2 2.3 21.0)  '(1 1.5 222.3) '(1.2 2.4 2222.0))
(octave:figure)
(octave:polar (iota 50) (iota 50))
(octave:title "Rose")
octave:supported-file-types ;;; to see supported file formats
(octave:save-plot-to "png" "rose.png")
(octave:figure)
(octave:title "Bar")
(octave:bar (iota 5) (iota 5))
(octave:figure)
(octave:title "Mesh 3D")
(octave:mesh (list (iota 4) (iota 4 2)))
(octave:figure)
(octave:title "ImageSC")
(octave:imagesc (list (iota 4) (iota 4 2)))
(octave:figure)
(octave:title "Mesh XYZ")
(octave:mesh-xyz (iota 3) (iota 2) (list (iota 3) (iota 3)))
(octave:save-plot-to "postscript" "foo.ps")
(octave:figure)
(octave:title "Y Error bars")
(octave:errorbar (list 1.1 2.1 3.1 4.1) (list 1.1 2.1 3.1 4.1) (list 2 3 4 3))
(octave:figure)
(octave:title "Boxes Error bars")
(octave:errorbar (list 1 2 3 4) (list 2 3 2 3) (list .1 .2 .2 .1) (list .1 .2 .2 .2) (list .2 .1 .2 .2) (list .4 .3 .2 .1) "'#~>'")
(octave:stop)

Limitations

This simple GNU/Octave interface has some limitations:

Changelog

License

The octave egg is released under the BSD license.