
WinFit 1.22
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WinFit is a shareware Non Linear Least Squares fitting program 
for windows 3.1. 

New Features (after version 1.1)
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* Data fitting region can be selected from the plot.
* User defined equations can be saved in the winfit.ini file.
* Parameters file can be save and restored.
* Added lonrentzian equation for resonance shape fitting.
* Added Polynom function.

Other
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* Easy to use windows interface.
* The program uses Levenberg-Marquardt fitting method.
* Reads the data from space or tab delimited ASCII file.
* Data are X,Y and an optional Y-error. WinFit can read multiple column 
  files.
* The data can be plotted with log axis options. 
* There are some built in functions and the a user-defined function:
	** Multiple of Gaussinas.
	** Multiple exponentials.
	** Multiple power-lows.
	** Multiple Lorentzians (new to v1.2).
	** Polynoms.
	** misc. functions. (the author uses).
* The program can generate weights that improve fitting performance for some 
  problems.
* This version can read up to 5000 data points and fit up to 10 parameters.
* The program provides a REPORT file and the plot can be copied to the 
  clipboard.
* The program will calculate and display the COVARIANCE and CURVATURE 
  matrixes.
