🚀 go-pugleaf

To all users of the GNUPLOT Data and Function Plotting package:

I've written a patch for GNUPLOT3.2 which
incorporates a nonlinear least squares fit mechanism into GNUPLOT. The
fit uses the Marquardt-Levenberg-algorithm for fitting and the GNUPLOT
function evaluation mechanism for calculation. Thus it remains relatively
small. It offers all advantages of fitting every rather complex-formulated
function you can create with GNUPLOT (including complex calculation).
It has been developped and tested on an MSDOS-PC, compiled with MS-C 6.0.

However I think it would be useful to get a really portable version out
of it. It is written so that this should be no big problem. On UNIX
systems there exist already Packages which allow fitting via external
calls of GNUPLOT. However just on small systems I think an integrated
solution would be more convenient especially for small computer systems
like MSDOS, MS-Windows, Atari ST or Amiga. As far as I remember there
are GNUPLOT ports for each of these systems.

If you are willing to become a BETA tester please note the following:
The package has been intensely tested under MSDOS. THere have been _NO_
tests at all on other systems, even no compilation. You should therefore
be familiar enough with your operating system to do patches needed for
compilation. And you should have the time to do it soon!

Please mail me your address and I will mail you an uuencoded version
of the GNUFIT package. For MSDOS there is also an executable available,
a Copro is strongly recommended but not necessary.

************************************************************************
Carsten Grammes
University of Saarbruecken
Experimental Physics
W-6600 Saarbruecken
Germany

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