
                   i = 1
</pre>

<p>Ejemplo:
</p>
<pre class="example">(%i1) load (descriptive)$
(%i2) s1 : read_list (file_search (&quot;pidigits.data&quot;))$
(%i3) mean_deviation (s1);
                               51
(%o3)                          --
                               20
(%i4) s2 : read_matrix (file_search (&quot;wind.data&quot;))$
(%i5) mean_deviation (s2);
(%o5) [3.287959999999999, 3.075342, 3.23907, 4.715664000000001, 
                                               4.028546000000002]
<