summary.FRBpca: Summary Method for Objects of Class 'FRBpca'

In FRB: Fast and Robust Bootstrap

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"), digits = 3, ...)
## S3 method for class 'summary.FRBpca'
print(x, ...)

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

Details

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

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

Author(s)

Gert Willems, Ella Roelant and Stefan Van Aelst

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. URL: http://www.jstatsoft.org/v53/i03/.

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

FRB documentation built on May 29, 2017, 5:45 p.m.