fa function - RDocumentation
https://www.rdocumentation.org/packages/psych/versions/2.2.5/topics/fa
The objective function is f = l o g ( t r a c e ( ( F F ′ + U 2) − 1 R) − l o g ( | ( F F ′ + U 2) − 1 R |) − n. i t e m s. When using MLE, this function is minimized. When using OLS (minres), although we are not minimizing this function directly, we can still …
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