mirror of
https://git.FreeBSD.org/ports.git
synced 2024-11-14 23:46:10 +00:00
49 lines
2.0 KiB
Plaintext
49 lines
2.0 KiB
Plaintext
FUDGIT is a double-precision multi-purpose fitting program.
|
|
It can manipulate complete columns of numbers in the form
|
|
of vector arithmetic. FUDGIT is also an expression language
|
|
interpreter understanding most of C grammar except pointers.
|
|
Morever, FUDGIT is a front end for any plotting program supporting
|
|
commands from stdin. It is a nice mathematical complement to
|
|
GNUPLOT, for example.
|
|
|
|
The main features of FUDGIT are:
|
|
- Command shell including history;
|
|
- Possible abbreviation of all the ``fitting mode'' commands;
|
|
- Possible plural when it makes sense too;
|
|
- Interactive shell supporting flow control (while,
|
|
if-else-endif, foreach);
|
|
- User definable macros;
|
|
- User definable aliases;
|
|
- On-line help;
|
|
- On-line loadable procedure- or function-objects;
|
|
- On-line selectable plotting program;
|
|
- Fourier transforms;
|
|
- Spline interpolation;
|
|
- Smoothing;
|
|
- Double-precision built-in calculator;
|
|
- Built-in interpreter supporting most of C language including
|
|
flow control (if, else, while, for, break, continue);
|
|
- User definable functions and procedures;
|
|
- Double-precision vector arithmetic;
|
|
- Access to the complete C math library;
|
|
- Access to any external C or FORTRAN routines/libraries
|
|
through dynamic loading;
|
|
- Built-in fitting series such as:
|
|
+ power series (polynomial);
|
|
+ sine series;
|
|
+ cosine series;
|
|
+ Legendre polynomials;
|
|
+ series of Gaussians;
|
|
+ series of exponentials;
|
|
+ series of lorentzian;
|
|
- User definable fitting functions;
|
|
- Totally dynamical allocation of variables and parameters;
|
|
- Possible selection of fitting ranges;
|
|
|
|
FUDGIT has a collection of fitting routines including:
|
|
- straight line (linear) least squares;
|
|
- straight line (linear) least absolute deviation;
|
|
- general linear least squares using QR decomposition;
|
|
- general linear least squares using singular value decomposition;
|
|
- nonlinear Marquardt-Levenberg method;
|