Perform forward filtering backward sampling
Simulate from a normal distribution given the right vectors and singular values of the covariance matrix
Simulate from a normal distribution given the right vectors and singular values of the covariance matrix
the mean of the multivariate normal distribution
the square root of the diagonal in the SVD of the Error covariance matrix C_t
the right vectors of the SVDfilter
a DenseVector sampled from the Multivariate Normal distribution with mean mu and covariance u d2 uT
Given a vector containing the SVD filtered results, perform backward sampling
Given a vector containing the SVD filtered results, perform backward sampling
a DLM specification
the system error matrix
Perform a single step in the backward sampler using the SVD
Backward Sampler utilising the SVD for stability TODO: Check this