# Parallel Analysis and Other Non Graphical Solutions to the Cattell Scree Test

## Documentation for package ‘nFactors’ version 2.4.1

- DESCRIPTION file.
- Package NEWS.

## Help Pages

nFactors-package | nFactors: Number of factor or components to retain in a factor analysis
bentlerParameters | Bentler and Yuan's Computation of the LRT Index and the Linear Trend Coefficients
boxplot.structureSim | Utility Functions for nScree Class Objects
componentAxis | Principal Component Analysis With Only n First Components Retained
corFA | Insert Communalities in the Diagonal of a Correlation or a Covariance Matrix
dFactors | Eigenvalues from classical studies
diagReplace | Replacing Upper or Lower Diagonal of a Correlation or Covariance Matrix
eigenBootParallel | Bootstrapping of the Eigenvalues From a Data Frame
eigenComputes | Computes Eigenvalues According to the Data Type
eigenFrom | Identify the Data Type to Obtain the Eigenvalues
generateStructure | Generate a Factor Structure Matrix
is.nFactors | Utility Functions for nFactors Class Objects
is.nScree | Utility Functions for nScree Class Objects
is.structureSim | Utility Functions for nScree Class Objects
iterativePrincipalAxis | Iterative Principal Axis Analysis
makeCor | Create a Full Correlation/Covariance Matrix from a Matrix With Lower Part Filled and Upper Part With Zeros
moreStats | Statistical Summary of a Data Frame
nBartlett | Bartlett, Anderson and Lawley Procedures to Determine the Number of Components/Factors
nBentler | Bentler and Yuan's Procedure to Determine the Number of Components/Factors
nCng | Cattell-Nelson-Gorsuch CNG Indices
nFactors | nFactors: Number of factor or components to retain in a factor analysis
nMreg | Multiple Regression Procedure to Determine the Number of Components/Factors
nScree | Non Graphical Cattel's Scree Test
nSeScree | Standard Error Scree and Coefficient of Determination Procedures to Determine the Number of Components/Factors
parallel | Parallel Analysis of a Correlation or Covariance Matrix
plot.nScree | Utility Functions for nScree Class Objects
plot.structureSim | Utility Functions for nScree Class Objects
plotnScree | Scree Plot According to a nScree Object Class
plotParallel | Plot a Parallel Analysis Class Object
plotuScree | Plot of the Usual Cattell's Scree Test
principalAxis | Principal Axis Analysis
principalComponents | Principal Component Analysis
print.nFactors | Utility Functions for nFactors Class Objects
print.nScree | Utility Functions for nScree Class Objects
print.structureSim | Utility Functions for nScree Class Objects
rRecovery | Test of Recovery of a Correlation or a Covariance matrix from a Factor Analysis Solution
structureSim | Population or Simulated Sample Correlation Matrix from a Given Factor Structure Matrix
studySim | Simulation Study from Given Factor Structure Matrices and Conditions
summary.nFactors | Utility Functions for nFactors Class Objects
summary.nScree | Utility Functions for nScree Class Objects
summary.structureSim | Utility Functions for nScree Class Objects