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MSTest (version 0.1.5)

chpDmat: Derivative matrix

Description

This function organizes the first and second derivatives of the log-likelihood.

Usage

chpDmat(mdl, msvar)

Value

List containing relevant first and second derivatives of log-likelihood function.

Arguments

mdl

List containing output from ARmdl.

msvar

Boolean indicator. If TRUE, there is a switch in variance. If FALSE only switch in mean is considered.

References

Carrasco, Marine, Liang Hu, and Werner Ploberger. 2014. “Optimal test for Markov switching parameters.” Econometrica 82 (2): 765–784.