summary.FRBpca {FRB}R Documentation

Summary Method for Objects of Class 'FRBpca'

Description

Summary method for objects of class FRBpca, and print method of the summary object.

Usage

## S3 method for class 'FRBpca':
summary(object, confmethod = c("BCA", "basic", "both"), ...)
## S3 method for class 'summary.FRBpca':
print(x, digits = 3, ...)

Arguments

object an R object of class FRBpca, typically created by FRBpcaS or FRBpcaMM
confmethod which kind of bootstrap confidence intervals to be displayed: 'BCA'= bias corrected and accelerated method, 'basic'= basic bootstrap method, 'both'= both kinds of confidence intervals
x an R object of class summary.FRBpca, resulting from summary(FRBpcaS(),...) or summary(FRBpcaMM(),...)
digits number of digits for printing (defaulting to 3)
... potentially more arguments to be passed to methods

Details

The print method displays the components of the summary object as listed in the Value section.

Value

summary returns an object of class summary.FRBpca, which is a list containing:

eigvals eigenvalues of the shape estimate (variances of the principal components) with confidence limits
eigvecs eigenvectors of the shape estimate (loadings of the principal components)
avgangle bootstrap estimates of average angles between true and estimated eigenvectors
pvars cumulative percentage of variance explained by first principal components with confidence limits
method PCA method that was used

Author(s)

Gert Willems and Ella Roelant

See Also

FRBpcaS, FRBpcaMM, print.FRBpca, plot.FRBpca

Examples

data(ForgedBankNotes)

MMpcares <- FRBpcaMM(ForgedBankNotes, R=999, conf=0.95)
summary(MMpcares) # -> print.summary.FRBpca() method


[Package FRB version 1.4 Index]