in src/columns.ts [63:68]
public static GET_TABLE_ROWS(dataView: DataView): ChordChartColumns<any>[] {
let table: DataViewTable = dataView && dataView.table;
let columns: ChordChartColumns<any> = this.getColumnSourcesT<any[]>(dataView);
return columns && table && table.rows.map(row =>
lodashMapValues(columns, (n: DataViewMetadataColumn, i) => n && row[n.index]));
}