inputs to ARHMM

[sarathnayar]

1. When I fit ARHMM, should I explicitly provide the inputs (lagged emissions), or can I omit this argument, and the model creates this from the emissions?

arhmm = LinearAutoregressiveHMM(num_states, emission_dim, num_lags=num_lags)
fitted_params, lps = arhmm.fit_em(params, props, emissions, inputs=inputs)

2. For a lag > 1, is there a special consideration of how the emissions and/or inputs should be arranged?
3. Can I use ARHMM with exogenous inputs?