in src/columns.ts [56:61]
public static GET_TABLE_VALUES(dataView: DataView): ChordChartColumns<any> {
let table: DataViewTable = dataView && dataView.table;
let columns: ChordChartColumns<any> = this.getColumnSourcesT<any[]>(dataView);
return columns && table && lodashMapValues(
columns, (n: DataViewMetadataColumn, i) => n && table.rows.map(row => row[n.index]));
}