Johnson Curve Toolbox

Fit a Johnson distribution to non-normal data

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Cite As

Dave (2026). Johnson Curve Toolbox (https://www.mathworks.com/matlabcentral/fileexchange/46123-johnson-curve-toolbox), MATLAB Central File Exchange. Retrieved .

General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
Version Published Release Notes Action
1.5.0

Updated *.zip file

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1.4.0

Updated documentation with expanded examples. New functions for (1) calculating likelihoods, (2) goodness-of-fit measures, and (3) generating random numbers for Johnson distributions.

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1.3.0

updated documentation

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1.2.0

New functions: PDF, CDF, and inverse CDF of Johnson distributions.

New examples: use Johnson Curves to analyze non-normal biological, environmental, demographic, and financial data sets.

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1.1.0

Minor updates: (1) more accurately scales the probability densities of the Johnson variates; (2) now allows optional output of normal and Johnson probability densities.

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1.0.0

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