warn_eigens: Warn about near-unit-roots in some regimes

In sstvars: Toolkit for Reduced Form and Structural Smooth Transition Vector Autoregressive Models

Warn about near-unit-roots in some regimes

Description

warn_eigens warns if the model contains near-unit-roots in some regimes

Usage

warn_eigens(stvar, tol = 0.002, allow_unstab = FALSE)

Arguments

stvar	object of class "stvar"
tol	if eigenvalue is closer than tol to its bound, a warning is thrown
allow_unstab	If TRUE, estimates not satisfying the stability condition are allowed. Always FALSE if weight_function="relative_dens".

Details

Warns if, for some regime, some moduli of "bold A" eigenvalues are larger than 1 - tol or some eigenvalue of the error term covariance matrix is smaller than tol.

Value

Doesn't return anything.

sstvars documentation built on Sept. 16, 2025, 1:09 a.m.