'fl'>100</span>*<span class='fu'><a href='https://rdrr.io/r/base/mean.html'>mean</a></span>(<span class='no'>pbmc_4k</span>$<span class='no'>counts</span> <span class='kw'>&gt;</span> <span class='fl'>0</span>)))</div><div class='output co'>#&gt; Proportion of counts that are non-zero: 4.3%.</div><div class='input'>
</div></pre>
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