class='kw'>function</span><span class='op'>(</span><span class='va'>instance</span>, <span class='va'>...</span><span class='op'>)</span> <span class='fu'><a href='https://rdrr.io/r/stats/sd.html'>sd</a></span><span class='op'>(</span><span class='va'>instance</span><span class='op'>)</span>
<span class='fu'><a href='addAlgorithm.html'>addAlgorithm</a></span><span class='op'>(</span><span class='st'>"deviation"</span>, fun <span class='op'>=</span> <span class='va'>fun</span>, reg <span class='op'>=</span> 