FRB (version 2.0-1)

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

Value

summary returns an object of class summary.FRBpca, which contains the following components:

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

digits

number of digits for printing

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

digits

number of digits for printing (default is 3)

x

an R object of class summary.FRBpca, resulting from summary(FRBpcaS(),...) or summary(FRBpcaMM(),...)

...

potentially more arguments to be passed to methods

Author

Gert Willems, Ella Roelant and Stefan Van Aelst

Details

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

References

• S. Van Aelst and G. Willems (2013), Fast and robust bootstrap for multivariate inference: The R package FRB. Journal of Statistical Software, 53(3), 1--32. tools:::Rd_expr_doi("10.18637/jss.v053.i03").

See Also

FRBpcaS, FRBpcaMM, print.FRBpca, plot.FRBpca

Examples

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