The true power of GRADISTAT lies in its accessibility and versatility. It runs entirely within the Microsoft Excel environment, functioning as an Excel file with integrated Visual Basic macros. This design allows it to accept both standard and non-standard size data, and to produce a comprehensive range of statistical outputs and graphical plots, including frequency and ternary diagrams.

GRADISTAT remains an indispensable, free (or low-cost) tool for sedimentologists needing to process large volumes of grain size data quickly and accurately. Ensuring you have the latest version ensures compatibility with modern Excel software.

: Access the "Gravel Sand Mud" and "Sand Silt Clay" sheets for automatically generated triangular diagrams and cumulative distribution plots.

[Raw Lab Data] ──> [Sieve/Laser Bins] ──> [GRADISTAT v 9.1] ──> [Folk & Ward Classifications] (Weights/%) (Microns or Phi) (VBA Processing) (Ternary & Frequency Plots) Core Statistical Deliverables

: Generates results arithmetically, geometrically (in metric units), and logarithmically (in phi units).

The software is hosted by Kenneth Pye Associates Ltd. On their software page, you will find a direct link to download the GRADISTAT Excel file. According to the official website, the program is hosted specifically for free academic and research use. Users should navigate to the gradistat.html page via the kpal.co.uk domain to access the latest version link.