rxSymInvCreate: Creates an object for caluclating Omega/Omega^-1 and dervatives
Description
Creates an object for caluclating Omega/Omega^-1 and dervatives
Usage
rxSymInvCreate(mat, diag.xform = c("sqrt", "log", "identity"), chol = FALSE)
Arguments
diag.xform
transformation to diagonal elements of OMEGA. or chol(Omega^-1)
chol
Boolean to state if the parameter values specify the OMEGA matrix or chol(Omega^-1)