ilr: isometric logratio transformation
In chemometrics: Multivariate Statistical Analysis in Chemometrics
ilr R Documentation
isometric logratio transformation
Description
A data transformation according to the isometric logratio transformation is done.
Usage
ilr(X)
Arguments
X
numeric data frame or matrix
Details
The ilr transformation is one possibility to transform compositional data
to a real space. Afterwards, the transformed data can be analyzed in the
usual way.
Value
Returns the transformed data matrix with one dimension less than X.
Author(s)
Peter Filzmoser <P.Filzmoser@tuwien.ac.at>
References
K. Varmuza and P. Filzmoser: Introduction to Multivariate Statistical
Analysis in Chemometrics. CRC Press, Boca Raton, FL, 2009.
See Also
alr,clr
Examples
data(glass)
glass_ilr <- ilr(glass)
chemometrics documentation built on Aug. 25, 2023, 5:18 p.m.
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| ilr | R Documentation |
isometric logratio transformation
Description
A data transformation according to the isometric logratio transformation is done.
Usage
ilr(X)
Arguments
X |
numeric data frame or matrix |
Details
The ilr transformation is one possibility to transform compositional data to a real space. Afterwards, the transformed data can be analyzed in the usual way.
Value
Returns the transformed data matrix with one dimension less than X.
Author(s)
Peter Filzmoser <P.Filzmoser@tuwien.ac.at>
References
K. Varmuza and P. Filzmoser: Introduction to Multivariate Statistical Analysis in Chemometrics. CRC Press, Boca Raton, FL, 2009.
See Also
alr,clr
Examples
data(glass)
glass_ilr <- ilr(glass)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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