Description Usage Arguments Details Value Note Author(s) References See Also Examples
The centred logratio (clr) coefficients map D-part compositional data from the simplex into a D-dimensional real space.
multivariate data, ideally of class data.frame or matrix
a positive or complex number:
the base with respect to which logarithms are computed. Defaults to
Each composition is divided by the geometric mean of its parts before the logarithm is taken.
the resulting clr coefficients, including
the geometric means of the original compositional data.
The resulting data set is singular by definition.
Aitchison, J. (1986) The Statistical Analysis of Compositional Data Monographs on Statistics and Applied Probability. Chapman \& Hall Ltd., London (UK). 416p.
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data(expenditures) eclr <- cenLR(expenditures) inveclr <- cenLRinv(eclr) head(expenditures) head(inveclr) head(pivotCoordInv(eclr$x.clr))
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