pic_model</a></code>.</p></dd>
<dt>e</dt>
<dd><p>A small, non-negative number added to the terms inside the
logarithms to avoid computing logarithms of zero. This prevents
numerical problems at the cost of introducing a very small
inaccuracy in the computation.</p></dd>
<dt>A</dt>
<dd><p>The n x k matrix of loadings. It should be a dense matrix.</p></dd>
<dt>B</dt>
<dd><p>The k x m matrix of factors. It should be a dense matrix.</p></dd>
<dt>family</dt>
<dd><p>If <code>model = "poisson"</code>, the loss fun