nFactorsObjectMethods {nFactors}R Documentation

Utility Functions for nScree Class Objects

Description

Utility functions for nFactors class objects.

Usage

 ## S3 method for class 'nFactors':
 is     (object)
 ## S3 method for class 'nFactors':
 print  (x, ...)
 ## S3 method for class 'nFactors':
 summary(object, ...)
 

Arguments

x nFactors: an object of the class nFactors
object nFactors: an object of the class nFactors
... variable: additionnal parameters to give to the print function with print.nFactors or to the summary function with summary.nFactors

Value

Generic functions for the nFactors class:

is.nFactors logical: is the object of the class nFactors?
print.nFactors numeric: vector of the number of components/factors to retain: same as the nFactors vector from the nFactors object
summary.nFactors data.frame: details of the results from a nFactors object: same as the details data.frame from the nFactors object, but with easier control of the number of decimals with the digits parameter

Author(s)

Gilles Raiche
Centre sur les Applications des Modeles de Reponses aux Items (CAMRI)
Universite du Quebec a Montreal
raiche.gilles@uqam.ca, http://www.er.uqam.ca/nobel/r17165/

References

Raiche, G., Riopel, M. and Blais, J.-G. (2006). Non graphical solutions for the Cattell's scree test. Paper presented at the International Annual meeting of the Psychometric Society, Montreal. [http://www.er.uqam.ca/nobel/r17165/RECHERCHE/COMMUNICATIONS/]

See Also

nBentler, nBartlett, nCng, nMreg, nSeScree

Examples

## SIMPLE EXAMPLE
 data(dFactors)
 eig      <- dFactors$Raiche$eigenvalues
 N        <- dFactors$Raiche$nsubjects

 res <- nBartlett(eig,N); res; is.nFactors(res); summary(res, digits=2)
 res <- nBentler(eig,N);  res; is.nFactors(res); summary(res, digits=2)
 res <- nCng(eig);        res; is.nFactors(res); summary(res, digits=2)
 res <- nMreg(eig);       res; is.nFactors(res); summary(res, digits=2)
 res <- nSeScree(eig);    res; is.nFactors(res); summary(res, digits=2)
 
## SIMILAR RESULTS, BUT NOT A nFacors OBJECT
 res <- nScree(eig);      res; is.nFactors(res); summary(res, digits=2)
 

[Package nFactors version 2.3.1 Index]