The matrix is split into the diagonal and offdiag components. factor NAs map/mask the values that are fixed and should not be estimated

create.elem.maps(x, elem = "Z")

Arguments

x

a marssMLE object

elem

the variance-covariance matrix: Q, R or V0

Value

a list with the factors for the diagonal and offdiagonals. NAs are elements that are not estimated (fixed).

Author

Eli Holmes and inspired by Tim Cline's code