get_M1_M2: get_M1_M2 get the list with first and second moments of...
In cthmm: Latent Continuous Time Markov Chains

get_M1_M2 get the list with first and second moments of complete data sufficient statistics for an individual, using the recursive smoothing method.

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  get_M1_M2(stat.table, time.diffs, obs.data, eigen.decomp,
    exact.time.ranks, absorb.state, transition.probs,
    emission.matrix, init.dist)

`stat.table`	data frame with num rows=number of sufficient stats, and columns ni nj di zi Ni oi oj. If the statistic is n_12, then the corresponding column is (1,2,0,0,0,0,0)
`time.diffs`	observation time intervals (single subject)
`obs.data`	observed data (single subject)
`eigen.decomp`	eigen.decomp object for rate matrix (single subject)
`exact.time.ranks`	number encoding the absorption time index
`absorb.state`	one or more absorbing states in the model
`transition.probs`	transition probabilities for each time interval
`emission.matrix`	emission matrix for subject
`init.dist`	initial distribution for sujbect