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provenance (version 0.1)

Statistical Toolbox for Sedimentary Provenance Analysis

Description

Bundles a number of established statistical methods to facilitate the visual interpretation of large datasets in sedimentary geology. Includes functionality for adaptive kernel density estimation, multidimensional scaling, generalised procrustes analysis and individual differences scaling using a variety of dissimilarity measures. Univariate provenance proxies, such as single-grain ages or (isotopic) compositions are compared with the Kolmogorov-Smirnov dissimilarity and Sircombe-Hazelton L2-norm. Categorical provenance proxies, such as mineralogical, petrographic or chemical compositions are compared with the Aitchison and Bray-Curtis distances.

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Version

Install

install.packages('provenance')

Monthly Downloads

207

Version

0.1

License

GPL-2

Maintainer

Pieter Vermeesch

Last Published

May 26th, 2015

Functions in provenance (0.1)

SH.dist

Sircombe and Hazelton distance
clr

Centred logratio transformation
plot.GPA

Plot a Procrustes configuration
ternaryplot

Plot a ternary diagram
plot.KDE

Plot a kernel density estimate
plot.MDS

Plot an MDS configuration
plot.INDSCAL

Plot an INDSCAL group configuration and source weights
read.HMdata

Read a .csv file with categorical data
get.f

Calculate the largest fraction that is likely to be missed
plot.PCA

Compositional biplot
getPCA

Principal Component Analysis
get.p

Calculate the probability of missing a given population fraction
read.DZdata

Read a .csv file with continuous (detrital zircon) data
getKDE

Create a kernel density estimate
KS.dist

Kolmogorov-Smirnov distance
plot.HMdata

Plot a pie chart
indscal

Individual Differences Scaling of provenance data
plot.DZdata

Plot continuous data as histograms or cumulative age distributions
dist

Calculate the dissimilarity matrix between two DZdata or HMdata datasets
getKDEs

Generate an object of class KDEs
subset

Get a subset of a provenance dataset
procrustes

Generalised Procrustes Analysis (GPA)
botev

Compute the optimal kernel bandwidth
summaryplot

Joint plot of several provenance datasets
getMDS

Multidimensional Scaling