gaussfitn

Version 1.1.3 (109 KB) by Matt J
Fit N-dimensional scattered points with Gaussian+constant
5.0
(1)
620 Downloads
Updated 14 Jan 2025

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This FEX submission provides gaussfitn, a wrapper function that uses lsqcurvefit to fit the N-dimensional Gaussian (plus constant) model function,
Here A and D are unknown scalars, μ is an unknown Nx1 mean vector, and Σ is an unknown NxN covariance matrix. By imposing lower and upper bounds 0<=D<=0, this can also be used to perform pure Gaussian fitting. The submission also provides a helpful tool, namely gaussFcn, for post-plotting and assessing the fit.
See help documentation for gaussfitn() and gaussFcn() as well as the accompanying Examples.mlx for demonstrations of usage.

Cite As

Matt J (2025). gaussfitn (https://www.mathworks.com/matlabcentral/fileexchange/69116-gaussfitn), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2018a
Compatible with R2016b and later releases
Platform Compatibility
Windows macOS Linux

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Version Published Release Notes
1.1.3

*Added gaussFcn() to the package, for obtaining the fit as an anonymous function
*Added an Examples.mlx file
*Iterative display for the optimization will now be suppressed by default.
1.1.2

Typo correction
1.1.1

Small fix to the improved mu0/sig0 estimation method
1.1.0

Improved initial guesses of mu0 and sig0.
1.0.2

No change
1.0.1

Description modification
1.0.0