Nonlinear Fitting Functions

MagicPlot is a handy tool for scientific and engineer data processing, plotting and nonlinear fitting. MagicPlot is powerful enough and consistent. Advantages * Compact: Single file ~2 MB * Multilevel undo function for all actions * Useful plot navigation and scaling * Visual nonlinear...

MagicPlot is a handy tool for scientific and engineer data processing, plotting and nonlinear fitting. MagicPlot is powerful enough and consistent. Advantages * Compact: Single file ~2 MB * Multilevel undo function for all actions * Useful plot navigation and scaling * Visual nonlinear...

Fityk [fi:tik] is a program for data processing and nonlinear curve fitting. It is primarily used... * by scientists who analyse data from powder diffraction, chromatography, photoluminescence and photoelectron spectroscopy, infrared and Raman spectroscopy, and other experimental techniques,...


Platforms: Windows, Mac, *nix, C/C++, BSD Solaris

How to fit a 2D Gaussian function to noisy data in Matlab? Or data with another number of dimensions and arbitrary fit function?It took me a while to find out how Matlab does this by the functions lsqcurvefit, fmincon or fminsearch. This project demonstrates how to use these functions to fit ND...


Platforms: Matlab

Particle swarm optimization is a derivative-free global optimum search algorithm based on the collective intelligence of a large group of intercommunicating entities. The individual particles are simple and primitive, knowing only their own current locations and fitness values, their personal...


Platforms: Matlab

The Ezyfit toolbox for Matlab enables the user to perform simple curve fitting of one-dimensional data using arbitrary (non linear) fitting functions.It will add a new menu to the MATLAB interface, which will make it more easily to write ser-defined fit equations, make interactive selections or...


Platforms: Matlab

MagicPlot 1.3.2, Bug fixing and minor update release, Dec 10, 2010 * Added: Log10 scale * Added: 'Restore Auto Positioning' context menu item for manually positioned axes labels and legends * Added: Changing canvas size option: scale image or resize canvas only * Added: '% of Canvas...


Platforms: Windows, Mac

The primary purpose of XLPlot is to create a figure rapidly and easily. It is ideal for for use at high school, as the path from data in one or more spreadsheet columns to the final figure is short (just a few mouse clicks) and easy to grasp. It contains basic statistical functions, such as...


Platforms: Windows

SWRC Fit is a scientific tool for hydrologist. It fits several soil hydraulic models to measured soil water retention data by nonlinear fitting. It is written in numerical calculation language GNU Octave. Web interface is also available.


Platforms: Windows, Mac, Linux

FitChiTool provides an interface similar to the Curve Fitting Toolbox to the fitChiSquare function.This allows you to perform fits using chi-square when measurement errors are known on linear or nonlinear models. It allows allows you to perform fits with multiple independent (more than one x)...


Platforms: Matlab

fitChiSquare is a generalized chi-square fitting routine for any model function when data measurement errors are known; it returns the model parameters and their uncertainties at the delta chi-square = 1 boundary (68% confidence interval). It also returns the chi-square and degrees of freedom...


Platforms: Matlab

This example solves a complex curve fitting problem that involves parameter pooling and stratification using a nonlinear least-squares approach. This example also takes advantage of some new language features with MATLAB 7. * Anonymous functions * Nested functions


Platforms: Matlab

The software system solves constrained nonlinear parameter estimation problems. Synonyms are data fitting, nonlinear regression, parameter identification, curve and surface fitting. A statistical analysis provides confidence intervals, correlation and covariance matrices, identification of...


Platforms: Windows

The art of fitting a nonlinear regression model often starts with choosing a model form. This submission is an attempt to teach the reader a simple but general paradigm for their models as a sum of fundamental shapes that are then shifted and scaled to fit the data.I've included a bestiary of...


Platforms: Matlab

The Function Plotting and Data Fitting Model allows you to create customizable plots to interactively explore the properties of up to three functions at a time. When you enter a function, adjustable parameters are automatically recognized, and sliders are created to vary the values of these...


Platforms: Mac

Library of 100+ functions for Business Planning and Budgeting with MS-Excel.


Platforms: Windows

Text::MicroMason::Functions Perl module contains Function Exporter for Simple Mason Templates. SYNOPSIS Use the execute function to parse and evalute a template: use Text::MicroMason::Functions qw( execute ); print execute($template, name=>Dave); Or compile it into a subroutine, and...


Platforms: *nix

Database Functions is a PHP class that can be used to build and execute MySQL database queries. It can build SELECT, INSERT, UPDATE and DELETE queries from lists of parameters and values. The class can also execute the generated queries and retrieve the SELECT query results into associative...


Platforms: *nix

Bio::NEXUS::Functions is a Perl module that provides private utility functions for the module. This package provides private functions that are not object-specific..


Platforms: *nix

CurveExpert Professional is a cross-platform solution for curve fitting and data analysis. Data can be modelled using a toolbox of linear regression models, nonlinear regression models, smoothing methods, or various kinds of splines. Over 60 models are built-in, but custom regression models...


Platforms: Mac