assertEquals(rec_factory.getOutputVectorSize(), 1);
Vector v_in_0 = new RandomAccessSparseVector(rec_factory.getInputVectorSize());
Vector v_out_0 = new RandomAccessSparseVector(rec_factory.getOutputVectorSize());
rec_factory.vectorizeLine( line, v_in_0, v_out_0 );
assertEquals(0.7, v_in_0.get(1), 0.0);
assertEquals(0.7, v_in_0.get(2), 0.0);
// test output