op'>$</span><span class='va'>results</span><span class='op'>$</span><span class='va'>summaries</span>
            <span class='co'>## deal with missing summary information for k = 1</span>
            <span class='kw'>if</span> <span class='op'>(</span><span class='fu'><a href='https://rdrr.io/r/base/NULL.html'>is.null</a></span><span class='op'>(</span><span class='va'>out</span><span class='op'>$</span><span class='va'>Entropy</span><span class='op'>)</span><span class='op'>)</span> <span class='op'>{</sp