 the
final array <code>y</code> of the observed data (coded as a data vector <code>y_obs</code>)
and the missing data (coded as a parameter vector <code>y_mis</code>). See the
<a href="time-series-chapter.html#time-series.chapter">time series chapter</a> for further discussion of
time-series model and specifically the <a href="autoregressive.section">autoregression
section</a> for an explanation of the
vectorization for <code>y</code> as well as an explanation of how to convert this
example to a full AR(1) 