Implementing Wayne Velicer’s MAP (Minimum Average Partial) criterion in R

I asked the question in StackOverflow but didn’t get a detailed answer so I answered it myself.

Here’s some screenshots:

Implementing Velicer's MAP criterion in R

Implementing Velicer's MAP vs. VSS in R

Notice that Velicer’s MAP criterion gives 2 Factors’ vs. VSS (Very Simple Structure) Complexity 1 and 2 respectively gives 3 and 8 factors.  Big Difference! You can check out the “psych” package at the Personality Project site

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