Distribution Fitting Software & Articles

Pearson 5 (Inverse Gamma) Distribution

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- shape parameter ()
- scale parameter ()
- location parameter ( yields the two-parameter Pearson 5 distribution)


Probability Density Function (PDF)

Pearson 5 distribution PDF

Pearson 5 (Inverse Gamma) Distribution Fitting

EasyFit allows to automatically or manually fit the Pearson 5 (Inverse 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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Pearson 5 (Inverse Gamma) Distribution Graphs and Properties

EasyFit displays all graphs and properties of the Pearson 5 (Inverse 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 Pearson 5 (Inverse Gamma) Distribution

You can easily generate random numbers from the Pearson 5 (Inverse 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
Pearson5Pdf Probability Density Function
Pearson5Cdf Cumulative Distribution Function
Pearson5Haz Hazard Function
Pearson5Inv Inverse CDF (Quantile Function)
Pearson5Rand Random Numbers
Pearson5Mean Mean
Pearson5Var Variance
Pearson5Stdev Standard Deviation

Learn more: EasyFit Help on the Pearson 5 (Inverse Gamma) distribution