pls (version 2.8-3)

scores: Extract Scores and Loadings from PLSR and PCR Models

Description

These functions extract score and loading matrices from fitted mvr models.

Usage

loadings(object, ...)
# S3 method for default
loadings(object, ...)
scores(object, ...)
# S3 method for default
scores(object, ...)
Yscores(object)
loading.weights(object)
Yloadings(object)

Value

A matrix with scores or loadings.

Arguments

object

a fitted model to extract from.

...

extra arguments, currently not used.

Author

Ron Wehrens and Bjørn-Helge Mevik

Details

All functions extract the indicated matrix from the fitted model, and will work with any object having a suitably named component.

The default scores and loadings methods also handle prcomp objects (their scores and loadings components are called x and rotation, resp.), and add an attribute "explvar" with the variance explained by each component, if this is available. (See explvar for details.)

See Also

mvr, coef.mvr

Examples

data(yarn)
plsmod <- plsr(density ~ NIR, 6, data = yarn)
scores(plsmod)
loadings(plsmod)[,1:4]

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