is a widely used particle size analysis software program that runs within Microsoft Excel . It is designed for geomorphologists and sedimentologists to rapidly calculate grain size statistics from data collected via sieving or laser granulometry. Key Features and Availability
| | 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 | gradistat v 91 free
README: Instructions and referencesInput: Where you paste your weight dataOutput: Statistical results appear hereGraphs: Cumulative and histogram plotsHydrometer: For settling tests