Welcome to my web-location! I'm a medical student, living in Giessen, a little town in the middle of Germany with a beautiful countryside. My interest in solving biological and medical problems with mathematical algorithms made me learn several computer-languages. To get my doctorate I took up the challenge to distinguish disorders of the vocal tract by analysing spoken voice. While this noble goal is still not reached, I've written a couple of useful programs on the way to get there. This humble page will serve as my platform to provide programs for download. Enjoy, Sebastian Seidel

Matlab-interface

Purpose

Use PLT-Scheme to remote-control Matlab.

• The function engine-open starts a so-called 'matlab-engine', which is a simple command-window.
• With engine-eval, arbitrary matlab-code can be executed without ever leaving scheme. The result is automatically displayed in scheme.
• A new scheme-data-type, the array, is defined. While most scheme-procedures won't take arrays as arguments, arrays can be pushed forth and back between scheme and matlab without any limitation. Converter-procedures transform scheme-data (strings, numbers, vectors, multidimensional matrices that consist of nested-vectors, ...) into arrays or vice versa.
• engine-apply puts everything together: calling matlab-procedures with arrays as arguments, catching errors that occur in matlab (which is not the case with engine-eval) and returning the result of the computation to scheme. engine-apply does only work with procedures that return exactly one value. However, several values can be packed into one cell-array.
• The documentation will guide you step by step through the installation-process (unpacking, compiling and linking).
• I'm using the program for many months now. It's reliable and complete. Backward-compatibility of future versions is not only a major goal, but also easy to ensure.

Download

• Self-installing: matlab-interface.plt
• Packaged using gzip-tar: matlab-interface.tar.gz
• Packaged using winzip: matlab-interface.zip

Source

matlab-interface

doc.txt	The documentation.
info.ss	Install-information.
primitive.c	The core-procedures.
highlevel.ss	Highlevel-procedures.
installer.ss	Procedures to compile and link 'primitive.c' to an extension-program.
develop.ss	Procedures to easy further development and to package new versions.
primitive.ss	Dummy procedures that are loaded when 'primitive.c' has not yet been compiled.
license.txt	The GNU-LGPL.

example

flower-blossom.ss

Example application that shows a flower blossomming.

private

use-installer.ss	Example, how to use the 'installer.ss'-module.
use-develop.ss	Example, how to use the 'develop.ss'-module.
test-primitive.ss	Tests on the core-procedures.

PS: All projects on this site are licensed GNU Lesser General Public License which makes them useful for open-source and commercial applications.