@Test
public void testSparseListMatrix() {
List<SparseDoubleVector> vectors = new ArrayList<SparseDoubleVector>();
for (double[] values : VALUES) vectors.add(new CompactSparseVector(values));
Matrix m = new ListMatrix<SparseDoubleVector>(vectors);
assertEquals(VALUES.length, m.rows());
assertEquals(VALUES[0].length, m.columns());
for (int r = 0; r < m.rows(); ++r)
for (int c = 0; c < m.columns(); ++c) assertEquals(VALUES[r][c], m.get(r, c), .0001);
m.set(0, 0, 0);
assertEquals(0, vectors.get(0).get(0), .0001);
for (int r = 0; r < m.rows(); ++r) assertEquals(vectors.get(r), m.getRowVector(r));
}
public static void testSet(Matrix m) {
int rows = m.rows();
int cols = m.columns();
for (int trials = 0; trials < 100; ++trials) {
int i = (int) (rows * Math.random());
int j = (int) (cols * Math.random());
double v = Math.random();
m.set(i, j, v);
assertEquals(v, m.get(i, j), 0.01);
}
}