Gradistat V 91 Free ((install)) | Genuine · 2027 |

| | Gradistat 9.1 Free | Gradistat (commercial successor) | GSlope | R package ‘G2Sd’ | | --- | --- | --- | --- | --- | | Price | Free | Paid (~$100-200) | Free | Free | | GUI | Excel-based | Standalone | Standalone | Command-line | | Batch processing | No | Yes | Yes | Yes | | Hydrometer support | Yes | Yes | No | Limited | | Modern OS support | Partial (Windows only) | Full | Full | Cross-platform | | Learning curve | Low | Low | Medium | High |

Simple step-by-step workflow: input % weights per sieve/class → choose method → click “Calculate” → view statistics and plots.

: Calculates mean, mode, sorting, and skewness using both Method of Moments and Folk and Ward (1957) graphical methods. Data Compatibility

It calculates particle size statistics (mean, mode, sorting, skewness) for sieve or laser granulometer data using Folk and Ward (1957) and method of moments techniques. gradistat v 91 free

: The software produces a range of visualizations to help you interpret your data, including frequency distribution plots, cumulative curves (in phi units), and ternary diagrams such as the Gravel-Sand-Mud and Sand-Silt-Clay plots.

The peakedness or sharpness of the distribution curve. 2. Metric and Phi Scale Support

GRADISTAT is an in-house particle size analysis software created to automate the laborious task of sedimentological data analysis. It is officially described as a "grain size distribution and statistics package for the analysis of unconsolidated sediments". | | Gradistat 9

Because GRADISTAT runs inside Microsoft Excel, its requirements are minimal: Windows or macOS operating system. Microsoft Excel (Version 2007 or newer recommended).

: For each sample, GradiStat automatically calculates the mean , mode , sorting , skewness , and kurtosis . These descriptive terms help characterize the nature of the sediment.

The macro is optimized for up to 200 individual grain size fractions. For higher-resolution data (e.g., laser diffraction), reduce the number of bins or use a different program like GRADISTAT_2014 (a community optimized version). : The software produces a range of visualizations

: Released in 2010 to support newer versions of Microsoft Excel (up to Excel 2010).

The version 9.1, like version 8.0, was likely distributed in a similar manner, but direct, official download links are not easily found through public searches. This has led many to look for the software through various third-party "free download" sites. These risks include: