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Confidence regions for particle shape

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Software for calculating confidence regions for particle shape

This page provides access to MATLAB® scripts and functions to support Graham & Gadsden (in review).

Note that some of the functions require the Statistics Toolbox. More information about MATLAB® is available on The Mathworks website.

Please report bugs to David Graham <>.



An example MATLAB® script is available which illustrates the calculation of theoretical and bootstrap confidence regions.

Example data are available for use with the example script.

Zip file

A zip file containing all of the functions and examples is available.


Graham DJ & Gadsden RJ. In review. Confidence regions for particle shape diagrams. Submitted to Sedimentology.


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