emxKroneckerVariance: Creates a large Variance matrix by Kroneckering two smaller...
In jpritikin/emx: Easy Model-Builder Functions for 'OpenMx'

Description Usage Arguments Details Value See Also Examples

This function creates the wide format variance matrix when combined with a relatedness matrix

1	emxKroneckerVariance(h, v, name)

`h`	MxMatrix. Left hand side of the Kronecker product. Typically the relatedness matrix.
`v`	MxMatrix. Right hand side of the Kronecker product. Typically the variance matrix.
`name`	character. Name of the resulting large matrix.

In many behavior genetic models, a relationship matrix is combined with a base variance matrix. The combination is done with a Kronecker product so that the variance exists (possibly weighted by zero or another number) for each member of the relationship.

MxAlgebra

emxRelatednessMatrix

   
# Create a loadings matrix
require(EasyMx)
x <- letters[23:26]
amat <- emxCholeskyVariance(x, 'A')
ahmat <- emxRelatednessMatrix(2, c(1, .5, 1), name='AH')
ab <- emxKroneckerVariance(ahmat, amat[[2]], 'AB')