V 91 High Quality Free — Gradistat

Gradistat V91 is an older Windows utility for analyzing and processing granulometry data, widely used in geology, sedimentology, and civil engineering for grain-size distribution, statistical parameters (mean, median, sorting), and plotting cumulative and frequency curves.

It calculates mean, mode, sorting (standard deviation), skewness, and kurtosis using both the Method of Moments and the Folk and Ward (1957) graphical methods. gradistat v 91 free

Usually provided as a .zip containing an .xla or .xlsm file. Gradistat V91 is an older Windows utility for

Despite its popularity, users report recurring problems: widely used in geology