/a></dt>
<dd><p>a <code>character</code> corresponding to the way kept models will be combined to
compute mean and sd evaluation scores, must be among <code>full.name</code>, <code>PA</code>, <code>run</code>,
<code>algo</code> (if <code>bm.out</code> is a <code><a href="BIOMOD.models.out.html">BIOMOD.models.out</a></code> object), or
<code>full.name</code>, <code>merged.by.PA</code>, <code>merged.by.run</code>, <code>merged.by.algo</code>
(if <code>bm.out</code> is a <code><a href="BIOMOD.ensemble.models.o