VSS.scree {psych} | R Documentation |
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.
VSS.scree(rx, main = "scree plot")
rx |
a correlation matrix or a data matrix. If data, then correlations are found using pairwise deletions. |
main |
Title |
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
William Revelle
http://personality-project.org/r/vss.html
fa.parallel
VSS.plot
, ICLUST
, omega
#VSS.scree(attitude) #VSS.scree(cor(attitude)