A Basic Set of Functions for Compositional Data Analysis
A minimum set of functions to perform compositional data analysis
using the log-ratio approach introduced by John Aitchison (1982) < http://www.jstor.org/stable/2345821>. Main functions
have been implemented in c++ for better performance.
News
coda.base 0.1.11 (Release date: 2018-12-23)
Principal components coordinates uncentered.
Sequential binary partition can be defined using a matrix with -1,0 and 1's.
CoDaPack's basis included.
A vignette explaining how to build coordinates has been included.
coda.base 0.1.10 (Release date: 2018-08-03)
Principal Balances included as direct method in coordinates function.
Coordinates function filters non-valid compositions.
coda.base 0.1.9 (Release date: 2018-05-03)
Modifications included to rcran policies.
coda.base 0.1.8 (Release date: 2017-12-03)
Exact algorithm for Principal Balances included.
Bug in lsearch base in principal components solved.
coda.base 0.1.7 (Release date: 2017-08-25)
Problem with function composition using 'clr' basis solved.
'coda.base.basis' option included to hide the basis when printing the coordinates.
New method which uses the principal components included in pb_basis.