Update model configuration — update.affectOU • affectOU

Modify the parameters of an Ornstein-Uhlenbeck (OU) model.

Usage

# S3 method for class 'affectOU'
update(
  object,
  ndim = NULL,
  theta = NULL,
  mu = NULL,
  gamma = NULL,
  sigma = NULL,
  ...
)

Arguments

object: An object of class affectOU.
ndim: Optional. New dimensionality of the affect process.
theta: Optional. New attractor strength (scalar or matrix).
mu: Optional. New attractor location (scalar or vector).
gamma: Optional. New diffusion coefficient (scalar or lower triangular matrix). Only gamma or sigma can be specified, not both. If sigma is provided, gamma is computed via Cholesky decomposition.
sigma: Optional. New noise covariance (scalar or positive semi-definite matrix). Only gamma or sigma can be specified, not both. If gamma is provided, sigma is computed as gamma %*% t(gamma).
...: Additional arguments (unused)

Value

Updated affectOU object

Examples

# 1D model
model <- affectOU()
model_new <- update(model, mu = 1)

# 2D model
theta <- matrix(c(0.5, 0, 0, 0.3), nrow = 2)
model_2d <- affectOU(theta = theta, mu = 0, gamma = diag(2))
model_2d_new <- update(model_2d, mu = c(1, -1))