hi,
I was recently asked by the question "What is the difference between Prinicipal component analysis and Factor analysis" in an job interview. I know the analysis of both these multivariate techniques in detail but I have no clear cut idea about its difference. I know that both the "Prinicipal component analysis" and "Factor analysis" target to reduce the variance covariance (or correlation ) structure of a set of variables. But further........?
Can anobody help to make me understand the difference between these two techniques?
Any suggestion in this regard is appreciated.
With regards,
Madan
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