scores

0th

Percentile

Extract Scores and Loadings from PLSR and PCR Models

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

Keywords
multivariate, regression
Usage
scores(object, …)
# S3 method for default
scores(object, …)

loadings(object, …) # S3 method for default loadings(object, …)

loading.weights(object)

Yscores(object)

Yloadings(object)

Arguments
object

a fitted model to extract from.

extra arguments, currently not used.

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.)

Value

A matrix with scores or loadings.

Note

There is a loadings function in package stats. It simply returns any element named "loadings". See loadings for details. The function can be accessed as stats::loadings(...).

See Also

mvr, coef.mvr

Aliases
  • scores
  • scores.default
  • loadings
  • loadings.default
  • loading.weights
  • Yscores
  • Yloadings
Examples
# NOT RUN {
data(yarn)
plsmod <- plsr(density ~ NIR, 6, data = yarn)
scores(plsmod)
loadings(plsmod)[,1:4]
# }
Documentation reproduced from package pls, version 2.7-1, License: GPL-2

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