Now we turn to the principal components analysis of the crime variables. The tables and chart that we cover here are as follows:
- The Communalities table
- The Total Variance Explained table
- The Scree Plot
- The Component Matrix table
Here is the Communalities table:
The Initial communalities are one. This will always be the case in PCA when the correlation matrix is being analyzed, since PCA attempts to account for the total variance of the variables.
The Extraction communalities are the communalities of the variables, given the specified unrotated PCA solution. Since the PCA solution is the ...
