Distribution Fitting Software & Articles

Johnson SU Distribution

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- shape parameter
- shape parameter ()
- scale parameter ()
- location parameter


Probability Density Function (PDF)

Johnson SU distribution PDF


Johnson SU Distribution Fitting

EasyFit allows to automatically or manually fit the Johnson SU 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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Johnson SU Distribution Graphs and Properties

EasyFit displays all graphs and properties of the Johnson SU 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 Johnson SU Distribution

You can easily generate random numbers from the Johnson SU 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
JohnsonSUPdf Probability Density Function
JohnsonSUCdf Cumulative Distribution Function
JohnsonSUHaz Hazard Function
JohnsonSUInv Inverse CDF (Quantile Function)
JohnsonSURand Random Numbers
JohnsonSUMean Mean
JohnsonSUVar Variance
JohnsonSUStdev Standard Deviation

Learn more: EasyFit Help on the Johnson SU distribution