mple">(%i1) load (descriptive)$
(%i2) load (numericalio)$
(%i3) s1 : read_list (file_search (&quot;pidigits.data&quot;))$
(%i4) cv (s1), numer;
(%o4)                   .6193977819764815
(%i5) s2 : read_matrix (file_search (&quot;wind.data&quot;))$
(%i6) cv (s2);
(%o6) [.4192426091090204, .3829365309260502, 0.363779605385983, 
                            .3627381836021478, .3346021393989506]
</pre>
<p>Veja tamb&eacute;m as fun&ccedil;&otilde;es <code>std</code> e <code>mean</code>.
</p></dd></dl>



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