You can refer the following paper on Factor Analysis using SAS it might help you to get the answer for your query Ijsmi, Editor (2017-04-26). "Tutorial: Factor analysis revisited – An overview with the help of SPSS, SAS and R packages". International Journal of Statistics and Medical Informatics. 3 (1). http://www.ijsmi.com/Journal/index.php/IJSMI/article/view/6
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