specify_starting_values_bsvar_mix: R6 Class Representing StartingValuesBSVARMIX

In bsvars: Bayesian Estimation of Structural Vector Autoregressive Models

R6 Class Representing StartingValuesBSVARMIX

Description

The class StartingValuesBSVARMIX presents starting values for the bsvar model with a zero-mean mixture of normals model for structural shocks.

Super classes

bsvars::StartingValuesBSVAR -> bsvars::StartingValuesBSVARMSH -> StartingValuesBSVARMIX

Public fields

A

an NxK matrix of starting values for the parameter A.

B

an NxN matrix of starting values for the parameter B.

hyper

a (2*N+1)x2 matrix of starting values for the shrinkage hyper-parameters of the hierarchical prior distribution.

sigma2

an NxM matrix of starting values for the MS state-specific variances of the structural shocks. Its elements sum to value M over the rows.

PR_TR

an MxM matrix of starting values for the probability matrix of the Markov process. Its rows must be identical and the elements of each row sum to 1 over the rows.

xi

an MxT matrix of starting values for the Markov process indicator. Its columns are a chosen column of an identity matrix of order M.

pi_0

an M-vector of starting values for mixture components state probabilities. Its elements sum to 1.

Methods

Public methods

• specify_starting_values_bsvar_mix$new()

• specify_starting_values_bsvar_mix$clone()

Inherited methods

• bsvars::StartingValuesBSVARMSH$get_starting_values()
• bsvars::StartingValuesBSVARMSH$set_starting_values()

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Method new()

Create new starting values StartingValuesBSVARMIX.

Usage

specify_starting_values_bsvar_mix$new(N, p, M, T, d = 0, finiteM = TRUE)

Arguments

N

a positive integer - the number of dependent variables in the model.

p

a positive integer - the autoregressive lag order of the SVAR model.

M

an integer greater than 1 - the number of components of the mixture of normals.

T

a positive integer - the the time series dimension of the dependent variable matrix Y.

d

a positive integer - the number of exogenous variables in the model.

finiteM

a logical value - if true a finite mixture model is estimated. Otherwise, a sparse mixture model is estimated in which M=20 and the number of visited states is estimated.

Returns

Starting values StartingValuesBSVARMIX.

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Method clone()

The objects of this class are cloneable with this method.

Usage

specify_starting_values_bsvar_mix$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

Examples

# starting values for a bsvar model for a 3-variable system
sv = specify_starting_values_bsvar_mix$new(N = 3, p = 1, M = 2, T = 100)

bsvars documentation built on Oct. 24, 2024, 5:11 p.m.