Fitting a truncated normal (Gaussian) distribution

Version 1.2.0.0 (2,2 KB) von Alex Ryabov
How to fit a truncated distribution
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Aktualisiert 8. Feb 2018

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Matlab does not allow to say that a distribution which we fit to a dataset is truncated.
In case of a Gaussian distribution, Matlab just calculates the mean and sigma and uses them as the paramters of a pdf, but this does not work if the distribution is cutted from one side, e.g. when you don't have measurements less than some detection limit. Then fitted distribution will be shifted.
Here I give an small example how to perform fitting in this case.

Zitieren als

Alex Ryabov (2026). Fitting a truncated normal (Gaussian) distribution (https://de.mathworks.com/matlabcentral/fileexchange/64040-fitting-a-truncated-normal-gaussian-distribution), MATLAB Central File Exchange. Abgerufen.

Kompatibilität der MATLAB-Version
Erstellt mit R2017a
Kompatibel mit allen Versionen
Plattform-Kompatibilität
Windows macOS Linux
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Version Veröffentlicht Versionshinweise
1.2.0.0

Now the function can fit distributions truncated either on the left or on the right or both sides
updated the figure
1.1.0.0

I converted script to a function
Script was converted to a function
1.0.0.0

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