Nonlinear Least Squares Fitting

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: Linux

The Biopsychology Nonlinear Toolbox is a MATLAB toolbox that combines established analysis routines in one easy to use graphical user interface. Platforms: Windows, Mac, Linux

C-squares is an easily implemented method for storage, querying and display of spatial data locations, based on a hierarchical, grid-based representation of the Earth' surface. Source code for encoding, decoding, mapping, etc. is provided via this site. Platforms: Windows, Mac, Linux

NLO helps studying the nonlinear optical effects of crystals. It offers a GUI to plot the theoret. expected 'maker fringes', captures images from video, retrieves data from and sends data to a LockIn, controls a stepping motor, imports and plots datase Platforms: Windows, Mac, Linux

Python fitting assistant is a fitting tool for eve online written in python. It is comparable to EFT. We can usualy be contacted via IRC on freenode (irc.freenode.org) in the #pyfa channel. Platforms: Windows, Mac, Linux

This script implements data structures for solving the following two problems: - Range minimization: given an array X of data, quickly find min(X[i:j]) for different ranges i:j. - Least common ancestors: given a tree, quickly find the lowest tree node that is an ancestor of all of a given set... Platforms: Windows, Mac, *nix, Python, BSD Solaris

The model relies on the theory of strength of least square curve fitting and auto regression techniques. Requirements: - MATLAB 7.5 or higher Platforms: Windows, Mac, *nix, Matlab, BSD Solaris

The proposed algorithm is based on nonlinear derivatives to automatically select the best edge information. This algorithm can replace the classical derivative with the following benefits:- univocal edge localization for synthetic and real images- noise reduction with no regularization: the noise... Platforms: Matlab

This ZIP file contains the nonlinear model of anF-16 fighter aircraft in MATLAB/Simulink, Both high-fidelity and low-fidelity aerodynamic data are available, taken from NASA report 1538 and "Aircraft Control and Simulation" by Lewis & Stevens.A trim function is also included.F16dyn.c and... Platforms: Matlab

this will find the solution of U''=k*U*U' by using taylor series 3rd order and secant methodit gives an idea about the nonlinear ode method and also gives the idea of solving problem in matlab Platforms: Matlab

This gui based application incorporates all aspects of pulse propagation in Nonlinear media.It uses the master equation for pulse propagation under slow varying envelop approximation known as General Nonlinear Schroedinger equation.This helps you simulate propagation of chirped or non-chirped... Platforms: Matlab

In the program, an example from the field of nonlinear chemical dynamics is presented. Governing equation and reaction scheme can be found in G. Nicolis, Dynamique Chimique, Thermodynamique, cindoTetique et mdoTecanique statistique, Dunod, Paris 2005. We use the arc length continuation method to... Platforms: Matlab

The package contains a simulink model of a mechanism which verify the angle of the road and adjust the torques by giving a angle to a plate located under the load session.this model is not a very complicated one and would be useful to whom want to:1.get familiar with control designs specially PID... Platforms: Matlab

DISOPE + MOMENTUM + PARTAN Algorithm to improve convergence of a nonlinear dynamic system.Study covers application for chemical process industries, robotics, genomics, etc. Platforms: Matlab

Using an engine throttle valve modeling example, this demo shares some perspectives on creation of nonlinear models of dynamic systems from the measurements of its input and outputs. It describes useful workflows for approaching the task of data-based modeling using System Identification... Platforms: Matlab

This is a demo of MATLAB Builder for Excel. This demo explains how one can compile MATLAB code into an Excel based COM component using MATLAB Excel Builder and use the same in Excel VBA. This demo compiles a MATLAB code that depicts a curve fitting application into an Excel based COM component.... Platforms: Matlab

This demo shows how you can create a COM component from a MATLAB code using MATLAB COM Builder. This demo compiles a function that uses the basic curve fitting capability of MATLAB into a COM component and uses it in an external Visual Basic project.Download the file and unzip it in on your local... Platforms: Matlab

This particular NVNA measurement setup is referenced from the following: J Hu et al "Calibrated Nonlinear Vector Network Measurement Without Using a Multi-Harmonic Generator" to appear in IET Microwaves, Antennas & Propagation. It's also extensively described in the following: J Hu "Radio... Platforms: Matlab

The Levenberg-Marquardt Fitting of Nuclear Decay Model demonstrates how EJS can be used to fit experimental data. In this simulation, nuclear decay data are used to provide a simple example, but this same process can be applied to any type of data. The sum of squared deviations is minimized but... Platforms: Mac

CurvFit (tm) is a curve fitting program for Windows. Lorentzian, Sine, Exponential and Power series are available models to match your data. A Lorentzian series is highly recommended for real data especially for multiple peaked and/or valleys data. CurvFit is another improved productivity... Platforms: Windows, Windows 8, Windows 7, Windows Server