public static void performAggregateUnary( MatrixIndexes indexesIn, MatrixValue valueIn, MatrixIndexes indexesOut, MatrixValue valueOut, AggregateUnaryOperator op, int brlen, int bclen) throws DMLRuntimeException { // operate on the value indexes first op.indexFn.execute(indexesIn, indexesOut); // perform on the value valueIn.aggregateUnaryOperations(op, valueOut, brlen, bclen, indexesIn); }