omxGetRAMDepth {OpenMx} | R Documentation |
omxGetRAMDepth
Description
Get the potency of a matrix for inversion speed-up
Usage
omxGetRAMDepth(A, maxdepth = nrow(A) - 1)
Arguments
A |
MxMatrix object |
maxdepth |
Numeric. maximum depth to check |
Details
This function is used internally by the mxExpectationRAM function
to determine how far to expand . It is
similarly used by mxExpectationLISREL in expanding
.
In many situations
is a zero matrix (nilpotent of order 2). So when
has large
dimension it is much faster to compute
than
.
[Package OpenMx version 2.21.11 Index]