home *** CD-ROM | disk | FTP | other *** search
- !help for !GL_Fit version 1.01
-
- A linear data fitter. This program calculates the best linear fit
- of a set of (orthogonal) functions to your data.
-
-
- USAGE:
- ~~~~~
- -Drop a data/text/CSV file (2 or 3 columns of numbers) on the baricon.
- col. 1: represents your 'x' data
- col. 2: 'y' data
- col. 3: represents an (estimated) error in your 'y' value. [optional]
-
- -Select the desired order from the menu (this affects the accuracy or number
- of terms of your fit function).
- N.B.: the highest order you can select depends on the number of data points
- you've dropped.
-
- -Select the desired fit-function from the submenu 'bases'.
-
- -Click 'GO'
-
- N.B.. Use the adjust button to keep your menu's on screen.
-
-
- RESULTS:
- ~~~~~~~
- Covariance-matrix or coefficients (parameters) may be saved from the menu as
- a text-file. A very nice feature is the generating of a curve with the
- 'CurveGen' entry. This will save a sequence of x and f(x) numbers which is
- in fact represents your fit. You may set the system variable "GL_Fit$GenN" to
- a number >2 to set the number of generated coefficients (default 100). You
- may however scan through the results directly by using the dialog-boxes
- from the menu.
-
- N.B.. Element[i][i] on the diagonal of the covariance matrix gives the
- squared error of parameter i.
-
-
- BUGS:
- ~~~~
- This program was actually written on a hot summer night, so there must be a
- lot of bugs in it. Have You found some ..., please send a complete description
- to me. To be honest, I never planned it as a PD-piece of software, but any
- suggestions to make it more useful are very welcome.
-
- My address is:
-
- Paul F.C. Groot.
- AreStraat 46,
- 1445 EK, Purmerend.
- Holland.
-
-