Distribution Fitting Software & Articles

Generalized Gamma Distribution

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- shape parameter ()
- shape parameter ()
- scale parameter ()
- location parameter ( yields the three-parameter Generalized Gamma distribution)


Probability Density Function (PDF)

Generalized Gamma distribution PDF

Generalized Gamma Distribution Fitting

EasyFit allows to automatically or manually fit the Generalized Gamma distribution and 55 additional distributions to your data, compare the results, and select the best fitting model using the goodness of fit tests and interactive graphs. Watch the short video about EasyFit and get your free trial.

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Generalized Gamma Distribution Graphs and Properties

EasyFit displays all graphs and properties of the Generalized Gamma distribution, presenting the results in an easy to read & understand manner. EasyFit calculates statistical moments (mean, variance etc.), quantiles, tail probabilities depending on the distribution parameters you specify.

Random Numbers from the Generalized Gamma Distribution

You can easily generate random numbers from the Generalized Gamma distribution in a variety of ways:

  • directly from EasyFit
  • in Excel sheets using the worksheet functions provided by EasyFitXL
  • in your VBA applications using the EasyFitXL library

Excel Worksheet and VBA Functions

EasyFitXL enables you to use the following functions in your Excel sheets and VBA applications:

Function Name
GenGammaPdf Probability Density Function
GenGammaCdf Cumulative Distribution Function
GenGammaHaz Hazard Function
GenGammaInv Inverse CDF (Quantile Function)
GenGammaRand Random Numbers
GenGammaMean Mean
GenGammaVar Variance
GenGammaStdev Standard Deviation

Learn more: EasyFit Help on the Generalized Gamma distribution