I'm trying to learn about factor analysis on my own. I'm using the following example (done on SAS):
http://www.utdallas.edu/~nkumar/FactorExample.PDF
There are a total of 6 different variables - M, P, C, E, H, and F.
Code:
Preliminary Eigenvalues: Total = 6 Average = 1
Eigenvalue Difference Proportion Cumulative
1 3.36689345 2.17285287 0.5611 0.5611
2 1.19404058 0.68703455 0.1990 0.7602
Eigenvalue Difference Proportion Cumulative
3 0.50700603 0.13515927 0.0845 0.8447
4 0.37184676 0.05872822 0.0620 0.9066
5 0.31311854 0.06602390 0.0522 0.9588
6 0.24709464 0.0412 1.0000
From what I understand, since there are only 2 eigenvalues that are greater than 1, we would only use 2 factors.
Sas outputs the following factor pattern:
Code:
Factor Pattern
Factor1 Factor2
M 0.63584 0.52255
P 0.65784 0.38549
C 0.59812 0.30447
E 0.76233 -0.31509
H 0.74908 -0.36797
F 0.83129 -0.30329
I'm kinda stuck here. What's the next step?