Gradistat V 9.1 calculates a comprehensive suite of grain size statistics using both and the Folk and Ward (1957) graphical methods . Statistical Parameter Methods Supported Average Size Arithmetic, Geometric (metric), Logarithmic (phi units) Sorting Standard Deviation (measures of uniformity) Skewness Measures of symmetry in distribution Kurtosis Peakness or flatness of the distribution curve Descriptive Terms
Researchers use Gradistat V 9.1 to characterize sedimentary environments and understand depositional energy dynamics. For instance:
Automatic assignment of Folk and Ward terms (e.g., "very well sorted," "leptokurtic")