'(list of str) List of human readable parameter names (for parameters
actually included in the model).'

@property
def param_names(self):

    param_names = np.zeros(self.k_params, dtype=object)
    if self.tvtp:
        param_names[self.parameters['regime_transition']] = [('p[%d->%d].tvtp%d' % (j, i, k)) for i in range((self.k_regimes - 1)) for k in range(self.k_tvtp) for j in range(self.k_regimes)]
    else:
        param_names[self.parameters['regime_transition']] = [('p[%d->%d]' % (j, i)) for i in range((self.k_regimes - 1)) for j in range(self.k_regimes)]
    return param_names.tolist()
