R: Summary Method for Objects of Class 'FRBpca'

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"), 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/.

Examples

data(ForgedBankNotes)

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

[Package FRB version 1.8 Index]