VSS.scree: 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