if (_fun.cardinality() < 6) {
final ArrayDescriptor descX = ((ExpressionNodeForArrayReference) _fun.argument( 0 )).arrayDescriptor();
final int colsX = descX.numberOfColumns();
final int rowsX = descX.numberOfRows();
final ArrayDescriptor descY = ((ExpressionNodeForArrayReference) _fun.argument( 1 )).arrayDescriptor();
final int colsY = descY.numberOfColumns();
final int rowsY = descY.numberOfRows();
return fun( CHITEST, _fun.argument( 0 ), _fun.argument( 1 ), cst( colsX, DataType.NUMERIC ), cst( rowsX,
DataType.NUMERIC ), cst( colsY, DataType.NUMERIC ), cst( rowsY, DataType.NUMERIC ) );
}
break;