Get Omega^-1 and derivativesSource:
Get Omega^-1 and derivatives
Object for inverse-type calculations. If this is a matrix, setup the object for inversion
rxSymInvCholCreate()with the default arguments and return a reactive s3 object. Otherwise, use the inversion object to calculate the requested derivative/inverse.
Thetas to be used for calculation. If missing (
NULL), a special s3 class is created and returned to access
Omega^1objects as needed and cache them based on the theta that is used.
The type of object. Currently the following types are supported:
cholOmegaInvgives the Cholesky decomposition of the Omega Inverse matrix.
omegaInvgives the Omega Inverse matrix.
d(Omega^-1)withe respect to the theta parameter specified in
d(diagonal(Omega^-1))with respect to the theta parameter specified in the
d(D), the theta number that the derivative is taken against. This must be positive from 1 to the number of thetas defining the Omega matrix.
Matrix based on parameters or environment with all the
matrixes calculated in variables