User’s guide for GcClust—An R package for clustering of regional geochemical data

Techniques and Methods 7-C13
By:  and 

Links

Abstract

GcClust is a software package developed by the U.S. Geological Survey for statistical clustering of regional geochemical data, and similar data such as regional mineralogical data. Functions within the software package are written in the R statistical programming language. These functions, their documentation, and a copy of the user’s guide are bundled together in R’s unit of sharable code, which is called a “package.” The user’s guide includes step-by-step instructions showing how the functions are used to cluster data and to evaluate the clustering results. These functions are demonstrated in this report using test data, which are included in the package.

Suggested Citation

Ellefsen, K.J, and Smith, D.B., 2016, User's guide for GcClust—An R package for clustering of regional geochemical data: U.S. Geological Survey report Techniques and Methods 7–C13, 21 p., http://dx.doi.org/10.3133/tm7c13.

ISSN: 2328-7055 (online)

Table of Contents

  • Abstract
  • Introduction
  • Organization of the Geochemical Data
  • Preparatory Steps
  • Pre-Processing and Analysis
  • Monte Carlo Sampling
  • Checking the Model
  • Splitting the Geochemical Data
  • Acknowledgments
  • References Cited
  • Appendix 1. Installation Instructions
  • Appendix 2. Process Scripts

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title User’s guide for GcClust—An R package for clustering of regional geochemical data
Series title Techniques and Methods
Series number 7-C13
DOI 10.3133/tm7C13
Year Published 2016
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Crustal Geophysics and Geochemistry Science Center
Description Report: iv, 21 p.; Installation Instructions; Example R Scripts; GcClust; Read Me File
Larger Work Type Report
Larger Work Subtype USGS Numbered Series
Larger Work Title Section C: Computer Programs in Book 7: Automated Data Processing and Computations
Public Comments This report is Chapter 13 of Section C: Computer Programs in Book 7: Automated Data Processing and Computations.
Online Only (Y/N) Y
Additional Online Files (Y/N) N
Google Analytic Metrics Metrics page