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An uncoupled two-dimensional Ornstein-Uhlenbeck process simulated with affectOU.

Usage

simpaper

Format

An object of class simulate_affectOU containing simulated trajectories from the specified Ornstein-Uhlenbeck process.

Details

The process is defined by the stochastic differential equation: $$d\mathbf{X}_t = \mathbf{\Theta}(\mathbf{\mu} - \mathbf{X}_t)dt + \mathbf{\Gamma}^{1/2}d\mathbf{W}_t$$

where:

  • \(\mathbf{\Theta} = \begin{pmatrix} 1 & 0 \\ 0 & 1 \end{pmatrix}\) is the drift matrix

  • \(\mathbf{\mu} = \begin{pmatrix} 0 \\ 0 \end{pmatrix}\) is the equilibrium mean vector

  • \(\mathbf{\Gamma} = \begin{pmatrix} 1 & 0 \\ 0 & 1 \end{pmatrix}\) is the diffusion matrix

  • \(\mathbf{W}_t\) is a two-dimensional Wiener process