GaussianHMM1d (version 1.1.2)

SimHMMGaussianInv: Simulation of a univariate Gaussian Hidden Markov Model (HMM)

Description

Generates a univariate regime-switching random walk with Gaussian regimes starting from a given state eta0, using the inverse method from noise u.Can be useful when generating multiple time series.

Usage

SimHMMGaussianInv(u, mu, sigma, Q, eta0)

Value

x

Simulated Data

eta

Probability of regimes

Arguments

u

series of uniform i.i.d. series (n x 1);

mu

vector of means for each regime (r x 1);

sigma

vector of standard deviations for each regime (r x 1);

Q

Transition probality matrix (r x r);

eta0

Initial value for the regime;

Author

Bouchra R Nasri and Bruno N Rémillard, January 31, 2019

References

Nasri & Remillard (2019). Copula-based dynamic models for multivariate time series. JMVA, vol. 172, 107--121.

Examples

Q <- matrix(c(0.8, 0.3, 0.2, 0.7),2,2) 
set.seed(1)
u <-runif(250)
mu <- c(-0.3 ,0.7) 
sigma <- c(0.15,0.05);
eta0=1
x <- SimHMMGaussianInv(u,mu,sigma,Q,eta0)