How can I fit 2 or more gamma distributions on a data set?
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MathWorks Support Team
on 9 Jan 2015
Edited: MathWorks Support Team
on 3 Mar 2021
I have a data set that is more appropriately fitted as 2 or more gamma distributions. Right now, I separate the data into two sets by hand and obtain fits for each set by using 'fitdist(ourData, 'Gamma')'. Is there a better way to do this?
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MathWorks Support Team
on 3 Mar 2021
Edited: MathWorks Support Team
on 3 Mar 2021
Unfortunately, at this time fitting multiple gamma distributions on a data set is not a supported functionality in MATLAB R2014b.
The workaround is to write the fitting problem as a Maximum Likelihood Estimation problem. Please consider the example on this documentation link:
You can use the ‘mle’ function to estimate the parameters with a custom pdf that you can specify.
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