Interpolant/Extrapolant by Mohammad Abouali

Creates Interpolant/Extrapolant for efficient mapping of data between 2D grids. (interpolationextrapol..., interpolation, extrapolation)

P=ConstructInterpolator(xs,ys,xd,yd,nPoly,nInterp)

Test_StructuredGrid.m

Test_UnstructuredGrid.m

LMFnlsq2 by Miroslav Balda

Solution of one or more nonlinear equations in the least squares sense. (nonlinear least squar..., curve fitting, identification)

LMFnlsq2.m

LMFnlsq2test.m

Sine function fit by R P

Optimization of parameters of the sine function to time series (sine, curve fitting)

[param]=sine_fit(x,y,fixed_params,initial_params,plot_flag)

Interactive Peak Fitter (Version 9.2) by Tom O'Haver

Keyboard operated peak fitting function for time-series signals. (chemistry, curve fitting, peak fitting)

ipf(arg1,arg2,arg3,arg4)

Peak Fitter by Tom O'Haver

Command-line peak fitter for time-series signals. Version 3.6: February, 2013. (statistics, signal processing, decomposition)

[FitResults,LowestError,BestStart,xi,yi,BootResults]=peakfi...

MATLAB Tools for Scientist by Asawari Samant

Files from the webinar: MATLAB Tools for Scientists- Introduction to Data Analysis and Visualization (curve fitting, biotech, dose response)

Characterization of Dose-Response Behavior

Dose Response Analysis

DoseResponseFit(varargin)

Polynomial Curve Fitting by Khaled Sharif

Will fit two sets of data to a polynomial. (curve fitting, simulation, polynomials)

fitting (x,y, max)

Active geometric shape models by Quan Wang

The active geometric shape model is a novel approach for fitting a geometric shape in images. (shape model, image processing, optimization)

BoundMirrorEnsure(A)

BoundMirrorExpand(A)

BoundMirrorShrink(A)

fitExponential.m by Jing Chen

Fitting with single exponential curve in the form of: yFit = yInf + (y0-yInf) * exp(-k*(x-x0)) (curve fitting, exponential curve, exponential)

fitExponential(x, y)

Curve fitting using polygonal representation by Salah Eldin

The function can be used in representing curves by connected straight lines. (curve fitting, polygonal representat..., linearization)

fitPoly(im_name, epsilon)

Gaussfit by roobie goyal

This file calculates gaussian fit (curve fitting)

[sigma,mu,A]=mygaussfit(x,y,h)

main

Savitzky-Golay smoothing filter by Shao Ying Huang

provide an alternative for Savitzky-Golay smoothing filter (data smoothing, curve fitting, least square)

savitzkyGolay1D_rle(vIN,order,interval)

Generate coefficients for 1D Savitzky-Golay smoothing filters by Shao Ying Huang

function c = generate_savitzkyGolay_coef1D(order,interval) (curve fitting)

generate_savitzkyGolay_coef1D(order,interval)

Weighted Nonlinear Curve Fit Script with Plotter by Jannick

This curve fitting script calculates best guess and errors using data with y-error. Plot see preview (fitting, nonlinear fitting, weighted nonlinear fi...)

paramtext(fitstr,c,cerr,nr,c2doF,Q,strings)

wnonlinfit(x,y,yerr,func,beta0,varargin)

example.m

Fit Logistic Curve to a Data Set by Varuna De Silva

This is a Matlab GUI, that will try to fit a logistic function to a given set of data. (logistic fuction, curve fitting)

Logistic(varargin)

e=myerror(x,t,m)

e=sum_sq_e(x,t,m)

polyfitn by John D'Errico

Polynomial modeling in 1 or n dimensions (polynomial, curve, regression)

polyfitn_demo

polydern(p,diffvar)

polyfitn(indepvar,depvar,modelterms)

Moving Least Square(MLS2D) by Jin

this codes is for 2-D questions (moving least square, interpolation, curve fitting)

MLS2DShape.m

Weight2D(type, para, x,y,xI,yI,dmI)

[Xg, Yg,WEI,Ngau]=GAUSSpoint(X1cell,Y1cell,X2cell,Y2cell,Ng...

Moving Least Square(MLS1D) by Jin

the file can be used to numeric interpolation based on moving Least Square. (interpolation, least square, curve fitting)

MLS1DShape(m, nnodes, xi, npoints, x, dmI, wtype, para)

Weight(type, para, di, dmI)

MLS1D.m

SPLINEFIT by Jonas Lundgren

Fit a spline to noisy data. (approximation, splinefit, cubic spline)

SPLINEFIT EXAMPLES

ppdiff(pp,j)

ppint(pp,a,b)

Data Driven Fitting com MATLAB by Elia Matsumoto

Slides from the recorded webinar in Portuguese: "Data Driven Fitting com MATLAB" (webinar, portuguese, matlab)

spline_deriv by Samuel Lazerson

Calculates the jth derivative of spline as produced by mkpp and returns a spline. (mathematics, spline, curve fitting)

spline_deriv( pp,jderiv )

Logistic Curve Fitting by Varuna De Silva

This is a Matlab GUI to fit a given data set with a Logistic Function (curve fitting, logistic function, itu bt500)

Logistic(varargin)

e=myerror(x,t,m)

e=sum_sq_e(x,t,m)

Demo files for "MATLAB for Excel Users" webinar by Jiro Doke

This is the demo used in March 22, 2011 webinar "MATLAB for Excel Users". (excel, curve fitting, webinar)

Energy Forecast Demo

ForecastGUI(varargin)

createSurfaceFit(thisHour, thisTemp, thisPower)

Power Law, Exponential and Logarithmic Fit by Jonathan C. Lansey

Finds and plots the linear fit to some data points when plotted on a log scale. (power law, exponential, curve fitting)

logfit(x,y,varargin)

Interactive regression on a plot by Ivar Eskerud Smith

Perform regression on plotted data in a figure by manually choosing the regression area. (interactive, regression, polyfit)

figreg( f, n, varargin )

Gravity Measurement Case Study by Robert Bemis

Scientific imaging case study with MATLAB and toolboxes. (example, image processing, image acquisition)

FindImaqDevices(desiredFormat)

[x,y]=limits(a)

readme

clickfit_OH for curve fitting by eye/hand by Oscar Hartogensis

click a data-series on top of a (noisy) scatterplot and get a spline or polynomial regression (curve fitting, ginput, regression)

clickfit_OH(varargin)

ginput_OH(arg1,strpointertype,xx,yy)

Discrete Least-Squares Rational Approximation by Carlos Borges

Constructs discrete least-squares rational approximations to data using a full-Newton algorithm. (mathematics, rational approximatio..., nonlinear least squar...)

dlsqrat(t,y,p,q,alpha)

LOGREG by Marco Cococcioni

This script shows how to perform an univariate logistic regression in Matlab. (curve fitting, regression, logistic curve)

A SIMPLE EXAMPLE ON HOW TO PERFORM AN UNIVARIATE LOGISTIC R...

Legendre polynomial fitting by Siqing Wu

Fitting data using a linear combination of Legendre polynomials (legendre polynomials, linear regression, curve fitting)

legendrefit(Y, N, method)

Interactive Peak Fitter, version 2.2 by Tom O'Haver

A peak fitting program for time-series signals. (chemistry, physics, peak fitting)

(2.*n)./(1+n);

4*exp(-e).*(1-exp(-e)); g(1:round(a1))=0;

ExpBroaden(g',timeconstant);

Demo Files for "Data Analysis with Statistics and Curve Fitting Toolboxes" 2007 Webinar by Stuart Kozola

Demo file from the August 7, 2007 Live Webinar (statistics, probability, curve fitting)

Analysis of Wing Stresses on a Prototype Aircraft

createfigure(X1, Y1, X2)

cubicfit(x,y)

SMIProm by Saumya Saurabh

The program helps you select ROI from image and find and process intensity profile (chemistry, physics, gui)

SMIProm(varargin)

confcallgrabit(varargin)

cropimage(fileName)

cfaxisset by Zhang Jiang

Set axis property of figure Curve Fitting Toolbox. (optimization, cftool, axis)

cfaxisset(varargin)