The MATLAB code presented here is for estimating a Markov Regime Switching Model with time varying transition probabilities. The code is developed by Zhuanxin Ding based on the original code by Marcelo Perlin for estimating a Markov Regime Switching Model with constant transition probability matrix.
Moved the beginning part of the code with nargin from function checkInputs_tvtp() to the beginning of the main function MS_Regress_Fit_tvtp.m. The old code returned error message when the newer (2017 or later) edition of Matlab is used.
1) Brett Sumsion of Dupont Capital Management kindly modified Marcelo's c++ filter to be used with the tvtp code here.
Add explanation to the tvtp matrix notation.