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bssm (version 0.1.8)

ukf: Unscented Kalman Filtering

Description

Function ukf runs the unscented Kalman filter for the given non-linear Gaussian model of class nlg_ssm, and returns the filtered estimates and one-step-ahead predictions of the states \(\alpha_t\) given the data up to time \(t\).

Usage

ukf(object, alpha = 1, beta = 0, kappa = 2)

Arguments

object

Model object

alpha, beta, kappa

Tuning parameters for the UKF.

Value

List containing the log-likelihood, one-step-ahead predictions at and filtered estimates att of states, and the corresponding variances Pt and Ptt.