Gradistat V 91 Free __hot__ Jun 2026

: Generates values arithmetically and geometrically via standard metric micrometers/millimeters, as well as logarithmically via the specialized Krumbein Phi ( ) scale .

GRADISTAT v9.1 remains an essential, free, and efficient tool for anyone needing to analyze grain size distribution. Its integration with Excel, combined with rigorous statistical methods, makes it the go-to software for both academic research and commercial sediment analysis. By downloading it, you ensure your data is analyzed using accepted industry standards.

Generates high-quality cumulative distribution curves and histograms directly within Excel.

: For users preferring R over Excel, this package is an evolution of the earlier GRADISTAT v4.0 macro. Kenneth Pye Associates Ltd Core Functionality

: Folk and Ward measures in metric units provide a highly stable basis for comparing compositionally variable sediments. gradistat v 91 free

Analysis of GRADISTAT v. 9.1: A Standard in Sedimentological Computing

Mastering Grain Size Analysis: The Ultimate Guide to GRADISTAT v9.1 Free Download and Use

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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 By downloading it, you ensure your data is

is a premier, macro-enabled Microsoft Excel spreadsheet program widely utilized by geologists, geomorphologists, and environmental scientists for calculating sediment grain size statistics. Originally developed by Simon J. Blott and Kenneth Pye, the program automates the complex mathematical equations required to analyze unconsolidated sediments gathered via sieve or laser granulometry methods. Because GRADISTAT is open-source and freely distributed, it serves as an indispensable tool for academic researchers and industry professionals alike. Key Capabilities of GRADISTAT v9.1

Gradistat V91 is an older Windows utility for analyzing and processing granulometry data, widely used in geology, sedimentology, and civil engineering for grain-size distribution, statistical parameters (mean, median, sorting), and plotting cumulative and frequency curves.

In an era of subscription SaaS and bloated software, Gradistat v 9.1 represents a perfect artifact of pragmatic, open (though not open-source) scientific computing. It does one thing and does it well: converting messy sieve and hydrometer data into interpretable sediment statistics.

Your grain size data should be prepared in a spreadsheet. You will need columns for the grain size class (e.g., aperture in microns or phi intervals) and the corresponding weight or percentage of sediment retained in that class. Kenneth Pye Associates Ltd Core Functionality : Folk

The program takes raw data—such as sieve weights or laser granulometer volume percentages—and automatically calculates key sedimentological parameters. These include mean, sorting, skewness, and kurtosis, utilizing both the and the method of moments . Key Features of GRADISTAT v9.1

Unlike standalone specialized software, GRADISTAT is built as a , which allows for a high degree of versatility and ease of use within a familiar spreadsheet environment. It is designed to handle data from various measuring techniques, including: Sieve Analysis : Manual weighing of sediment fractions. Laser Granulometry : Modern light diffraction methods.

: It provides rapid calculation of grain size statistics using both the Folk and Ward (1957) and Method of Moments methods.