Statistics are provided in both metric units (micrometers) and logarithmic phi units .
For those using R , the G2Sd package is a free, open-source evolution of the GRADISTAT v. 4.0 macro, designed for modern statistical environments. Why Use GRADISTAT?
GRADISTAT is generally available as a for academic and research purposes through official and institutional channels: gradistat v 91 free
The official KPAL website provides downloads for original versions and Version 8.0 (compatible with Excel 2000–2010).
GRADISTAT generates a range of visual outputs, including frequency histograms, cumulative distribution curves, and ternary (triangular) plots. How to Download GRADISTAT for Free Statistics are provided in both metric units (micrometers)
is a widely used software package designed for the rapid analysis of grain size statistics from unconsolidated sediments. Originally developed by Simon J. Blott and Kenneth Pye, it operates as an integrated macro within Microsoft Excel , making it highly accessible for researchers in geomorphology and sedimentology.
The program accepts data from various measuring techniques, including traditional sieving , laser granulometry, X-ray sedigraphs, or Coulter counters. Why Use GRADISTAT
Before this software, calculating complex statistics for large datasets was a laborious manual process. GRADISTAT simplifies this by providing robust, standardized descriptive terms (e.g., "very well sorted" or "fine skewed") based on recognized sedimentological scales. This standardization is crucial for mitigating coastal erosion, managing floods, and conducting environmental impact studies. GRADISTAT software - Kenneth Pye Associates Ltd