VSS.scree {psych}R Documentation

Plot the successive eigen values for a scree test

Description

Cattell's scree test is one of most simple ways of testing the number of components in a correlation matrix. Here we plot the eigen values of a correlation matrix.

Usage

VSS.scree(rx, main = "scree plot")

Arguments

rx a correlation matrix or a data matrix. If data, then correlations are found using pairwise deletions.
main Title

Details

Among the many ways to choose the optimal number of factors is the scree test. A better function to show the scree as well as compare it to randomly parallel solutions is found found in fa.parallel

Author(s)

William Revelle

References

http://personality-project.org/r/vss.html

See Also

fa.parallel VSS.plot, ICLUST, omega

Examples

#VSS.scree(attitude)
#VSS.scree(cor(attitude)


[Package psych version 1.0-85 Index]