Distribution Fitting Software & Articles

Fatigue Life (Birnbaum-Saunders) Distribution

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- shape parameter ()
- scale parameter ()
- location parameter ( yields the two-parameter Fatigue Life distribution)


Probability Density Function (PDF)

Fatigue Life distribution PDF

Fatigue Life (Birnbaum-Saunders) Distribution Fitting

EasyFit allows to automatically or manually fit the Fatigue Life (Birnbaum-Saunders) 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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Fatigue Life (Birnbaum-Saunders) Distribution Graphs and Properties

EasyFit displays all graphs and properties of the Fatigue Life (Birnbaum-Saunders) 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 Fatigue Life (Birnbaum-Saunders) Distribution

You can easily generate random numbers from the Fatigue Life (Birnbaum-Saunders) 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
FatigueLifePdf Probability Density Function
FatigueLifeCdf Cumulative Distribution Function
FatigueLifeHaz Hazard Function
FatigueLifeInv Inverse CDF (Quantile Function)
FatigueLifeRand Random Numbers
FatigueLifeMean Mean
FatigueLifeVar Variance
FatigueLifeStdev Standard Deviation

Learn more: EasyFit Help on the Fatigue Life (Birnbaum-Saunders) distribution