@Test
public void testGetter() {
double[] da = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11};
DoubleDataset a = new DoubleDataset(da);
int l = da.length;
for (int i = 0; i < l; i++) {
assertEquals(i, a.getDouble(i), 1e-5 * i);
}
for (int i = 0; i < l; i++) {
int r = l - 1 - i;
assertEquals(r, a.getDouble(-(i + 1)), 1e-5 * r);
}
Dataset sv = a.getSliceView(new Slice(2, 7));
Dataset sc = a.getSlice(new Slice(2, 7));
l = sc.getSize();
for (int i = 0; i < l; i++) {
double r = sc.getDouble(-(i + 1));
assertEquals(r, sv.getDouble(-(i + 1)), 1e-5 * r);
}
}
@Test
public void testPosition() {
double[] da = {0, 1, 2, 3, 4, 5, 6, 5, 4, 3, 2, 1};
DoubleDataset a = new DoubleDataset(da);
assertEquals(6, a.maxPos()[0]);
assertEquals(0, a.minPos()[0]);
Dataset b = DatasetFactory.zeros(new int[] {100, 200}, Dataset.FLOAT64);
b.set(100.00, new int[] {50, 100});
b.set(-100.00, new int[] {51, 101});
assertEquals(50, b.maxPos()[0]);
assertEquals(100, b.maxPos()[1]);
assertEquals(51, b.minPos()[0]);
assertEquals(101, b.minPos()[1]);
b.set(Double.NaN, new int[] {52, 53});
assertEquals(52, b.maxPos()[0]);
assertEquals(53, b.maxPos()[1]);
assertEquals(50, b.maxPos(true)[0]);
assertEquals(100, b.maxPos(true)[1]);
Dataset c = DatasetFactory.zeros(new int[] {100, 200}, Dataset.FLOAT64);
c.set(100.00, new int[] {99, 50});
c.set(99.99, new int[] {50, 50});
assertEquals(99, c.maxPos()[0]);
assertEquals(50, c.maxPos()[1]);
c.set(101, new int[] {0, 0});
assertEquals(0, c.maxPos()[0]);
assertEquals(0, c.maxPos()[1]);
}
@Test
public void testCreators() {
double dz = 0.5;
DoubleDataset z = DoubleDataset.createFromObject(dz);
assertEquals(0, z.getRank());
assertEquals(1, z.getSize());
assertEquals(dz, z.getElementDoubleAbs(0), 1e-14);
double[] da = {0, 1, 2, 3, 4, 5};
DoubleDataset a = DoubleDataset.createFromObject(da);
assertEquals(1, a.getRank());
assertEquals(6, a.getSize());
assertEquals(6, a.getShape()[0]);
IndexIterator it = a.getIterator();
for (int i = 0; it.hasNext(); i++) {
assertEquals(i, a.getElementDoubleAbs(it.index), 1e-15 * i);
}
double[][] db = {{0, 1, 2}, {3, 4, 5}};
DoubleDataset b = DoubleDataset.createFromObject(db);
assertEquals(2, b.getRank());
assertEquals(6, b.getSize());
assertEquals(2, b.getShape()[0]);
assertEquals(3, b.getShape()[1]);
it = b.getIterator();
for (int i = 0; it.hasNext(); i++) {
assertEquals(i, b.getElementDoubleAbs(it.index), 1e-15 * i);
}
double[][] dc = {{0, 1, 2, 3}, {4, 5, 6}};
DoubleDataset c = DoubleDataset.createFromObject(dc);
assertEquals(2, c.getRank());
assertEquals(8, c.getSize());
assertEquals(2, c.getShape()[0]);
assertEquals(4, c.getShape()[1]);
it = c.getIterator();
for (int i = 0; it.hasNext(); i++) {
if (i < 7) assertEquals(i, c.getElementDoubleAbs(it.index), 1e-15 * i);
else assertEquals(0, c.getElementDoubleAbs(it.index), 1e-15);
}
double[][] dd = {{0, 1, 2}, {4, 5, 6, 7}};
DoubleDataset d = DoubleDataset.createFromObject(dd);
assertEquals(2, d.getRank());
assertEquals(8, d.getSize());
assertEquals(2, d.getShape()[0]);
assertEquals(4, d.getShape()[1]);
it = d.getIterator();
for (int i = 0; it.hasNext(); i++) {
if (i != 3) assertEquals(i, d.getElementDoubleAbs(it.index), 1e-15 * i);
else assertEquals(0, d.getElementDoubleAbs(it.index), 1e-15);
}
}
@Test
public void testConstructor() {
double[] da = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11};
DoubleDataset a = new DoubleDataset(da);
IndexIterator it = a.getIterator();
for (int i = 0; it.hasNext(); i++) {
assertEquals(i, a.getElementDoubleAbs(it.index), 1e-5 * i);
}
DoubleDataset b = new DoubleDataset(da, 3, 4);
it = b.getIterator();
for (int i = 0; it.hasNext(); i++) {
assertEquals(i, b.getElementDoubleAbs(it.index), 1e-5 * i);
}
DoubleDataset c = new DoubleDataset(a.getSliceView(new int[] {1}, null, new int[] {2}));
it = c.getIterator();
for (int i = 0; it.hasNext(); i++) {
assertEquals(2 * i + 1, c.getElementDoubleAbs(it.index), 1e-5 * i);
}
// test hashes
a.hashCode();
b.hashCode();
c.hashCode();
}