Last data update: 2014.03.03
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R: Plot of the Usual Cattell's Scree Test
plotuScree | R Documentation |
Plot of the Usual Cattell's Scree Test
Description
uScree plot a usual scree test of the eigenvalues of a correlation matrix.
Usage
plotuScree(Eigenvalue,
x = Eigenvalue,
model = "components",
ylab = "Eigenvalues",
xlab = "Components",
main = "Scree Plot",
...
)
Arguments
Eigenvalue |
depreciated parameter: eigenvalues to analyse (not used if
x is used, recommended)
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x |
numeric: a vector of eigenvalues, a matrix of
correlations or of covariances or a data.frame of data
|
model |
character: "components" or "factors"
|
main |
character: title of the plot (default is Scree Plot )
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xlab |
character: label of the x axis (default is Component )
|
ylab |
character: label of the y axis (default is Eigenvalue )
|
... |
variable: additionnal parameters to give to the eigenComputes function
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Value
Nothing returned with this function.
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
Cattell, R. B. (1966). The scree test for the number of factors.
Multivariate Behavioral Research, 1, 245-276.
See Also
nScree ,
parallel
Examples
## SCREE PLOT
data(dFactors)
attach(dFactors)
eig = Cliff1$eigenvalues
plotuScree(x=eig)
Results
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