function() { return x; }
</code>
+ Functions can return strings, arrays, data tables, URLs, or any other data type.
+
<a name="datatable"><h3>DataTable</h3>
<p>You can also specify a Google Visualization Library <a
href="http://code.google.com/apis/visualization/documentation/reference.html#DataTable">DataTable</a>
- walkthrough of using std. dev. in a spreadsheet chart
</pre>
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