V 91 Link !link!: Gradistat

Prepare Your Data: Ensure you have your sieve sizes (in microns or phi) and the corresponding weights or percentages.

Method of Moments: Arithmetic, geometric, and logarithmic statistics.

KSU Sedimentology: Kansas State University and other geosciences departments often maintain mirrors of the .xls file for student use. How to Use GRADISTAT v9.1 gradistat v 91 link

Physical Descriptions: Automatic naming of sediment types (e.g., "Very Fine Sand").

The most secure way to download Version 9.1 is through the author’s official distribution channels or academic hosting sites: Prepare Your Data: Ensure you have your sieve

Using the software is straightforward, provided your data is formatted correctly.

In grain size analysis, consistency is vital. Version 9.1 ensures that your data is processed using the latest bug fixes and compatibility updates for Excel 365 and Windows 10/11. This prevents the "Runtime Errors" often found in older versions like v4.0 or v8.0 when handled by modern operating systems. Conclusion How to Use GRADISTAT v9

The software provides a comprehensive suite of outputs based on a single input of weight or volume percentages. Key features include:

Folk and Ward Method: Calculations for mean, sorting (standard deviation), skewness, and kurtosis.