Libraries: Kalman: exact diffuse Kalman filter, local level and time-varying hedge ratio

Kalman: exact diffuse Kalman filter, local level and time-varying hedge ratio:

Kalman filter and smoother with an exact diffuse start, missing values and maximum likelihood: local level, local linear trend and a regression whose hedge ratio drifts.

Kalman: exact diffuse Kalman filter, local level and time-varying hedge ratio

Author: Mohamed-amine Baddir