Calculates the conditional means \(\mu_{y,t}\) of the process
get_mu_yt_Cpp(obs, all_phi0, all_A, alpha_mt)
a \((T \times d)\) matrix such that the i:th row contains the conditional mean of the process.
a \((T \times dp)\) matrix such that the i:th row contains the vector \((y_{i-1},...,y_{i-p})\) \(((dp)x1)\), where \(y_{i}=(y_{1i},...,y_{di})\) \((dx1)\). That is, the initial values are included but the last observations not.
a \((d \times M)\) matrix such that the m:th column contains the intercept parameters of the m:th regime.
a \((d \times dp \times M)\) array such that the slice [, , m]
contains the AR matrices of the m:th regime cbinded together: \([A_{m,1}:...:A_{m,p}]\).
a \((T \times M)\) matrix such that [t, m]
contains the time t
transition weights of the m:th regime.