[R] Creating covariance matrices for simple and complex factor structure

William Revelle
Sun, 06 Feb 2011 05:11:42 -0000

At 6:00 PM +0000 2/5/11, LOUDERMILK, BRANDON wrote:
>Hello all,
>
>I'm trying to create covariance matrices that, when processed via
>CFA methods (in the sem package) will produce exact fit with simple
>structure down to poor fit with cross loadings.  What is the best
>way to do this?  I don't really need to have the exact loop code,
>but maybe an explanation of how to make a few of the matrices or an
>explanation of the rationale behind performing this task would be of
>benefit.
>
>Thanks in advance.
>
>	[[alternative HTML version deleted]]

Brandon,

  See some of the simulation functions in the psych package.  e.g.,
sim.congeneric, sim.structure,  sim. circumplex, sim.simplex, etc.

Bill


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