Absolutely, use a DataView ( http://code.google.com/apis/chart/interactive/docs/reference.html#DataView). You can use DataTable#getFilteredRows to restrict your rows by whatever criteria you choose and then pass the returned indices to DataView#setRows. DataView#setColumns allows you to choose which columns to include in the view. When drawing the chart, pass the DataView object instead of the DataTable to the draw call.
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