public void testPlusDouble() throws Exception {
Vector val = test.plus(1);
assertEquals("size", test.size(), val.size());
for (int i = 0; i < test.size(); i++) {
if (i % 2 == 0) {
assertEquals("get [" + i + ']', 1.0, val.get(i));
} else {
assertEquals("get [" + i + ']', values[i / 2] + 1.0, val.get(i));
}
}
}
public void testDivideDouble() throws Exception {
Vector val = test.divide(3);
assertEquals("size", test.size(), val.size());
for (int i = 0; i < test.size(); i++) {
if (i % 2 == 0) {
assertEquals("get [" + i + ']', 0.0, val.get(i));
} else {
assertEquals("get [" + i + ']', values[i / 2] / 3.0, val.get(i), EPSILON);
}
}
}
public void testTimesVector() throws Exception {
Vector val = test.times(test);
assertEquals("size", test.size(), val.size());
for (int i = 0; i < test.size(); i++) {
if (i % 2 == 0) {
assertEquals("get [" + i + ']', 0.0, val.get(i));
} else {
assertEquals("get [" + i + ']', values[i / 2] * values[i / 2], val.get(i));
}
}
}
public void testMinus() throws Exception {
Vector val = test.minus(test);
assertEquals("size", test.size(), val.size());
for (int i = 0; i < test.size(); i++) {
assertEquals("get [" + i + ']', 0.0, val.get(i));
}
val = test.minus(test).minus(test);
assertEquals("cardinality", test.size(), val.size());
for (int i = 0; i < test.size(); i++) {
assertEquals("get [" + i + ']', 0.0, val.get(i) + test.get(i));
}
Vector val1 = test.plus(1);
val = val1.minus(test);
for (int i = 0; i < test.size(); i++) {
assertEquals("get [" + i + ']', 1.0, val.get(i));
}
val1 = test.plus(-1);
val = val1.minus(test);
for (int i = 0; i < test.size(); i++) {
assertEquals("get [" + i + ']', -1.0, val.get(i));
}
}
public void testAssignDoubleArray() throws Exception {
double[] array = new double[test.size()];
test.assign(array);
for (int i = 0; i < values.length; i++) {
assertEquals("value[" + i + ']', 0.0, test.getQuick(i));
}
}
public void testAssignVector() throws Exception {
Vector other = new DenseVector(test.size());
test.assign(other);
for (int i = 0; i < values.length; i++) {
assertEquals("value[" + i + ']', 0.0, test.getQuick(i));
}
}
public void testSparseDoubleVectorInt() throws Exception {
Vector val = new RandomAccessSparseVector(4);
assertEquals("size", 4, val.size());
for (int i = 0; i < 4; i++) {
assertEquals("get [" + i + ']', 0.0, val.get(i));
}
}
public void testViewPart() throws Exception {
Vector part = test.viewPart(1, 2);
assertEquals("part size", 2, part.getNumNondefaultElements());
for (int i = 0; i < part.size(); i++) {
assertEquals("part[" + i + ']', test.get(i + 1), part.get(i));
}
}
public void testTimesVectorCardinality() {
try {
test.times(new DenseVector(test.size() + 1));
fail("expected exception");
} catch (CardinalityException e) {
}
}
public void testGetOver() {
try {
test.get(test.size());
fail("expected exception");
} catch (IndexException e) {
}
}
public void testAssignDoubleArrayCardinality() {
double[] array = new double[test.size() + 1];
try {
test.assign(array);
fail("cardinality exception expected");
} catch (CardinalityException e) {
}
}
public void testAssignVectorCardinality() {
Vector other = new DenseVector(test.size() - 1);
try {
test.assign(other);
fail("cardinality exception expected");
} catch (CardinalityException e) {
}
}
public void testGet() throws Exception {
for (int i = 0; i < test.size(); i++) {
if (i % 2 == 0) {
assertEquals("get [" + i + ']', 0.0, test.get(i));
} else {
assertEquals("get [" + i + ']', values[i / 2], test.get(i));
}
}
}
public void testNormalize() throws Exception {
Vector val = test.normalize();
double mag = Math.sqrt(1.1 * 1.1 + 2.2 * 2.2 + 3.3 * 3.3);
for (int i = 0; i < test.size(); i++) {
if (i % 2 == 0) {
assertEquals("get [" + i + ']', 0.0, val.get(i));
} else {
assertEquals("dot", values[i / 2] / mag, val.get(i));
}
}
}
public void testGetDistanceSquared() {
Vector other = new RandomAccessSparseVector(test.size());
other.set(1, -2);
other.set(2, -5);
other.set(3, -9);
other.set(4, 1);
double expected = test.minus(other).getLengthSquared();
assertTrue(
"a.getDistanceSquared(b) != a.minus(b).getLengthSquared",
Math.abs(expected - test.getDistanceSquared(other)) < 10.0E-7);
}
public void testSet() throws Exception {
test.set(3, 4.5);
for (int i = 0; i < test.size(); i++) {
if (i % 2 == 0) {
assertEquals("get [" + i + ']', 0.0, test.get(i));
} else if (i == 3) {
assertEquals("set [" + i + ']', 4.5, test.get(i));
} else {
assertEquals("set [" + i + ']', values[i / 2], test.get(i));
}
}
}
public void testCrossProduct() {
Matrix result = test.cross(test);
assertEquals("row size", test.size(), result.size()[0]);
assertEquals("col size", test.size(), result.size()[1]);
for (int row = 0; row < result.size()[0]; row++) {
for (int col = 0; col < result.size()[1]; col++) {
assertEquals(
"cross[" + row + "][" + col + ']',
test.getQuick(row) * test.getQuick(col),
result.getQuick(row, col));
}
}
}
public void testLike() {
Vector other = test.like();
assertTrue("not like", test.getClass().isAssignableFrom(other.getClass()));
assertEquals("size", test.size(), other.size());
}
public void testDecodeVector() throws Exception {
Vector val = AbstractVector.decodeVector(test.asFormatString());
for (int i = 0; i < test.size(); i++) {
assertEquals("get [" + i + ']', test.get(i), val.get(i));
}
}
public void testCardinality() {
assertEquals("size", 7, test.size());
}
public void testCopy() throws Exception {
Vector copy = test.clone();
for (int i = 0; i < test.size(); i++) {
assertEquals("copy [" + i + ']', test.get(i), copy.get(i));
}
}