Search results: tag:"fitting;" - MATLAB Answers

547 questions found in Answers

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1

answer

0 votes
17 views

Why does the Curve Fitting Toolbox use random start points for custom nonlinear equations, and the fit fail to converge to the expected curve?

Asked by MathWorks Support Team on 30 Jul 2025

Latest activity Commented on by Alex Sha on 28 Sep 2025

Accepted Answer by MathWorks Support Team

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

1

answer

0 votes
1 view

Issues with nlinfit - not fitting second parameter? Fitting a Blackbody curve

Asked by Caelan on 1 Sep 2025

Latest activity Commented on by Umar on 3 Sep 2025

Accepted Answer by Umar

Signal Processing Signal Processing Toolbox Transforms, Correlation, and Modeling Signal Modeling Linear Predictive Coding

1

answer

0 votes
10 views

Fitting a blackbody curve with two variables - having issues with lsqcurvefit stopping and unsure how to use options effectively

Asked by Caelan on 3 Jun 2025

Latest activity Commented on by Caelan on 10 Jun 2025

Accepted Answer by John D'Errico

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

2

answers

1 vote
4 views

Apply boundary condition (upper and lower limit) to parameters during the fitting using the function nlinfit?

Asked by Manuel on 19 Feb 2013

Latest activity Edited by Torsten on 14 May 2025

Signal Processing Signal Processing Toolbox Transforms, Correlation, and Modeling Signal Modeling Linear Predictive Coding

2

answers

0 votes
11 views

How does the expfit function... functions

Asked by Marianne on 8 May 2025

Latest activity Commented on by Marianne on 9 May 2025

AI and Statistics Statistics and Machine Learning Toolbox Regression Support Vector Machine Regression

1

answer

0 votes
5 views

Custom 2D surface fitting issue

Asked by Nick K on 9 Dec 2020

Latest activity Answered by Raag on 8 May 2025

AI and Statistics Curve Fitting Toolbox Smoothing

0

answers

0 votes
2 views

Surfnorm cubic fit plot

Asked by Deniz on 3 Apr 2019

Latest activity Commented on by Adam Danz on 27 Feb 2025

MATLAB Graphics 2-D and 3-D Plots Surfaces, Volumes, and Polygons Surface and Mesh Plots

2

answers

0 votes
4 views

Finding parameters by fitting data to a system of ODEs with lsqnonlin

Asked by Neda on 30 Jan 2025

Latest activity Commented on by Star Strider on 31 Jan 2025

Accepted Answer by prabhat kumar sharma

MATLAB Mathematics

1

answer

0 votes
1 view

How to fit my data to interpolated functions

Asked by Roberto Serafinelli on 8 Oct 2024

Latest activity Commented on by Roberto Serafinelli on 23 Oct 2024

AI and Statistics Curve Fitting Toolbox Linear and Nonlinear Regression

1

answer

0 votes
35 views

How to fit a noise signal in the shape of Lorentzian to a Lorentzian curve.

Asked by Yogesh on 8 Oct 2024

Latest activity Commented on by Umar on 10 Oct 2024

AI and Statistics Curve Fitting Toolbox

1

answer

0 votes
15 views

How can I compute the standard deviation of a Gaussian fit generated with the Curve Fitting App?

Asked by MathWorks Support Team on 29 Sep 2014

Latest activity Edited by MathWorks Support Team on 13 Sep 2024

Accepted Answer by MathWorks Support Team

AI and Statistics Curve Fitting Toolbox Linear and Nonlinear Regression

5

answers

1 vote
111 views

2D data fitting - Surface

Asked by Paolo on 25 Feb 2014

Latest activity Answered by Umar on 12 Aug 2024

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

1

answer

0 votes
3 views

How can I manipulate the 2D data to make it smoother

Asked by Luqman Saleem on 7 Jul 2024

Latest activity Answered by Umar on 8 Jul 2024

Accepted Answer by Umar

MATLAB Graphics 2-D and 3-D Plots Surfaces, Volumes, and Polygons Surface and Mesh Plots

1

answer

0 votes
6 views

Optimize model parameter values to achieve model best fit to the input data

Asked by Muhammad umer Khan on 8 Apr 2024

Latest activity Answered by Matthew on 8 Apr 2024

Accepted Answer by Matthew

Control Systems Nonlinear Systems Nonlinear Control

1

answer

0 votes
2 views

How to debug this? Not getting into it. Need help

Asked by tuhin on 4 Mar 2024

Latest activity Commented on by tuhin on 4 Mar 2024

MATLAB Mathematics

2

answers

0 votes
4 views

Get equation of the surface from curve fitting

Asked by Gonçalo on 6 Feb 2024

Latest activity Edited by Walter Roberson on 6 Feb 2024

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

2

answers

0 votes
13 views

data fitting with multiple independent variables

Asked by Daniele Sonaglioni on 9 Jan 2024

Latest activity Answered by the cyclist on 9 Jan 2024

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

1

answer

0 votes
7 views

Fitting data to complicated Elliot's Formular

Asked by Quy Cong Van on 26 May 2022

Latest activity Answered by Xi Wang on 2 Nov 2023

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

4

answers

0 votes
3 views

Replace a variable in a fuction handle by a function

Asked by Belmiro Duarte on 19 Oct 2023

Latest activity Moved by Dyuman Joshi on 22 Oct 2023

Mathematics and Optimization Optimization Toolbox Least Squares Linear Least Squares

1

answer

0 votes
7 views

fitrgp: Custom kernel Function

Asked by Abhinav Gupta on 1 Mar 2022

Latest activity Answered by Vatsal on 20 Oct 2023

AI and Statistics Statistics and Machine Learning Toolbox Regression Gaussian Process Regression

3

answers

2 votes
85 views

How do I constrain a fitted curve through specific points like the origin in MATLAB?

Asked by MathWorks Support Team on 3 May 2012

Latest activity Edited by MathWorks Support Team on 18 Oct 2023

Accepted Answer by MathWorks Support Team

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

1

answer

0 votes
7 views

How can I adjust the output of my pdepe function for nlinfit?

Asked by Hashim on 29 Apr 2022

Latest activity Answered by SAI SRUJAN on 11 Oct 2023

AI and Statistics Statistics and Machine Learning Toolbox Regression

1

answer

0 votes
5 views

How to generate a row vector of 6 elements (1x6) out of the given function (fitting the fuction) with a specific MEAN ?

Asked by Sambit Supriya Dash on 28 May 2022

Latest activity Answered by Sai Pavan on 3 Oct 2023

AI and Statistics Statistics and Machine Learning Toolbox Probability Distributions and Hypothesis Tests Continuous Distributions Logistic Distribution

1

answer

0 votes
3 views

fit data trend with equation

Asked by C.G. on 1 Aug 2022

Latest activity Answered by Milan Bansal on 20 Sep 2023

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

1

answer

0 votes
2 views

real or categorical predictors, which one is faster?

Asked by mono on 17 Sep 2023

Latest activity Edited by dpb on 19 Sep 2023

Accepted Answer by dpb

AI and Statistics Statistics and Machine Learning Toolbox Regression Gaussian Process Regression

2

answers

3 votes
214 views

Fitting data with custom equation

Asked by Francesco Panico on 9 Dec 2018

Latest activity Commented on by Zeyu Ma on 31 Aug 2023

Accepted Answer by Stephan

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

1

answer

0 votes
6 views

Plotting the outcome of a 3D fit

Asked by Saeid on 21 Aug 2023

Latest activity Commented on by Saeid on 21 Aug 2023

Accepted Answer by Torsten

MATLAB Graphics 2-D and 3-D Plots Surfaces, Volumes, and Polygons Surface and Mesh Plots

1

answer

1 vote
5 views

LSQCURVEFIT simultaniously on 4 datasets and 2 functions

Asked by Romeo Van Snick on 21 Dec 2011

Latest activity Commented on by Yingbo Li on 15 Aug 2023

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

2

answers

0 votes
40 views

how do I fit a Raman spectrum that has multiple peaks using Gaussian bands?

Asked by Salvatore Maida on 27 Jun 2023

Latest activity Commented on by Mathieu NOE on 6 Jul 2023

Accepted Answer by Hiro Yoshino

MATLAB Language Fundamentals Matrices and Arrays Matrix Indexing

2

answers

0 votes
8 views

fitting data with exponential + linear form

Asked by 찬 소 on 20 Aug 2020

Latest activity Answered by Md Shariful Islam on 22 Jun 2023

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

2

answers

0 votes
11 views

Appy lsqcurvefit to multiple data sets with multiple parameters

Asked by Rahand on 1 Jun 2023

Latest activity Commented on by Jon on 2 Jun 2023

Mathematics and Optimization Optimization Toolbox Least Squares Linear Least Squares

1

answer

0 votes
2 views

Can we control the maximum iterations and tolerance when calling 'arx'?

Asked by MathWorks Support Team on 8 May 2023

Latest activity Answered by MathWorks Support Team on 11 May 2023

Accepted Answer by MathWorks Support Team

Control Systems System Identification Toolbox Nonlinear Model Identification Nonlinear ARX Models

1

answer

0 votes
5 views

Hyperbolic Fitting using multiple data sets from each experiment.

Asked by Mir on 24 Apr 2023

Latest activity Edited by chicken vector on 24 Apr 2023

AI and Statistics Curve Fitting Toolbox Linear and Nonlinear Regression

1

answer

0 votes
6 views

What commands are available for curve fitting in MATLAB?

Asked by MathWorks Support Team on 1 Dec 2010

Latest activity Edited by MathWorks Support Team on 19 Apr 2023

Accepted Answer by MathWorks Support Team

AI and Statistics Curve Fitting Toolbox Linear and Nonlinear Regression

1

answer

0 votes
1 view

std error of probability distribution

Asked by Hashem on 2 Apr 2023

Latest activity Answered by Hashem on 4 Apr 2023

AI and Statistics Statistics and Machine Learning Toolbox Probability Distributions and Hypothesis Tests Continuous Distributions Half-Normal Distribution

3

answers

0 votes
11 views

Curve fitting function (fit) error

Asked by sepideh on 2 Nov 2012

Latest activity Commented on by chuenkiong on 15 Mar 2023

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

1

answer

0 votes
3 views

Find the goodness fitting and find the best fit

Asked by Giorgos Papakonstantinou on 31 Jul 2013

Latest activity Commented on by Carter Hoffman on 14 Mar 2023

AI and Statistics Statistics and Machine Learning Toolbox Probability Distributions and Hypothesis Tests Continuous Distributions Half-Normal Distribution

2

answers

3 votes
65 views

Extraction of values from a cfit object

Asked by Antonio on 3 Apr 2013

Latest activity Commented on by David Ebert on 8 Feb 2023

AI and Statistics Curve Fitting Toolbox Fit Postprocessing

1

answer

0 votes
3 views

Double monod maximum rate estimation

Asked by Maria Teresa Aguirrezabala Campano on 26 Jan 2023

Latest activity Commented on by Torsten on 26 Jan 2023

Accepted Answer by Torsten

MATLAB Graphics 2-D and 3-D Plots Surfaces, Volumes, and Polygons Surface and Mesh Plots

1

answer

0 votes
1 view

Unrecognized property string for class Panel

Asked by BOZHENG on 17 Jan 2023

Latest activity Commented on by BOZHENG on 18 Jan 2023

Accepted Answer by Steven Lord

MATLAB Language Fundamentals Data Types Characters and Strings

0

answers

0 votes
1 view

How to clean the pitch Angle or wind speed data of wind turbine

Asked by yue zhang on 11 Jan 2023

Latest activity Commented on by Mathieu NOE on 11 Jan 2023

Industries Energy Production Wind Power

1

answer

0 votes
1 view

Are ADDL (additional doses) and II (interval) nlme columns supported in Simbiology datasets for model fitting?

Asked by Zinnia Parra-Guillen on 7 Dec 2022

Latest activity Commented on by Zinnia Parra-Guillen on 14 Dec 2022

Computational Biology SimBiology Simulation Scan Parameter Ranges

1

answer

0 votes
3 views

How can I do curve fitting depending in the following formula?

Asked by M on 4 Dec 2022

Latest activity Answered by Image Analyst on 4 Dec 2022

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

1

answer

0 votes
40 views

How do I fit an ellipse to my data in MATLAB?

Asked by MathWorks Support Team on 2 May 2012

Latest activity Edited by MathWorks Support Team on 28 Nov 2022

Accepted Answer by MathWorks Support Team

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

3

answers

1 vote
20 views

Custom exponential fit doesn't seem to work

Asked by Jannis Korn on 14 Nov 2022

Latest activity Commented on by Matt J on 14 Nov 2022

Accepted Answer by Matt J

AI and Statistics Curve Fitting Toolbox Get Started with Curve Fitting Toolbox

1

answer

0 votes
2 views

Is there an error in the documentation of the Curve Fitting Toolbox for the example on different plotting options?

Asked by MathWorks Support Team on 27 Jun 2009

Latest activity Edited by MathWorks Support Team on 10 Nov 2022

Accepted Answer by MathWorks Support Team

AI and Statistics Curve Fitting Toolbox Fit Postprocessing

4

answers

0 votes
56 views

Fitting a function to data (fminsearch) with limits

Asked by loes visser on 30 Aug 2016

Latest activity Answered by Stefan Schuberth on 8 Nov 2022

Accepted Answer by John D'Errico

MATLAB

1

answer

0 votes
6 views

How to fit parameters of an ode by using ode45 and fmincon

Asked by Francesca Valentini on 3 Nov 2022

Latest activity Commented on by Francesca Valentini on 4 Nov 2022

Accepted Answer by Torsten

MATLAB Mathematics Numerical Integration and Differential Equations Ordinary Differential Equations

3

answers

0 votes
13 views

morphing a surface over 3D data

Asked by Francesca Danielli on 28 Oct 2022

Latest activity Answered by Francesca Danielli on 30 Oct 2022

MATLAB Mathematics Computational Geometry Delaunay Triangulation

1

answer

0 votes
2 views

How do I work with CFIT objects in curve fitting?

Asked by MathWorks Support Team on 27 Jun 2009

Latest activity Edited by MathWorks Support Team on 8 Oct 2022

Accepted Answer by MathWorks Support Team

AI and Statistics Curve Fitting Toolbox Fit Postprocessing

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