ar1_cov_chol: Upper triangular Cholesky decomposition for a stationary...

Description Usage Arguments Value Examples

Description

Creates the upper Cholesky triangle of the covariance matrix of an AR(1) process with parameters rho and sigma, observed at the time points in the vector times. The process is assumed to be in stationarity and to have Gaussian errors.

Usage

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ar1_cov_chol(times, rho, sigma)

Arguments

times

An vector of positive integers, preferably ordered.

rho

A real number strictly less than 1 in absolute value.

sigma

A positive real number.

Value

A square matrix with length(times) rows.

Examples

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times <- c(1, 4:5, 7)
rho <- 0.5
sigma <- 1
ar1_cov_chol(times, rho, sigma)

BenjaK/irregulAR1 documentation built on May 30, 2019, 3:51 p.m.