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 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 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 testAssignBinaryFunction3() throws Exception {
test.assign(mult(4));
for (int i = 0; i < values.length; i++) {
if (i % 2 == 0) {
assertEquals("get [" + i + ']', 0.0, test.get(i));
} else {
assertEquals("value[" + i + ']', values[i - 1] * 4, test.getQuick(i));
}
}
}
@Override
public Matrix assignRow(int row, Vector other) {
if (columnSize() != other.size()) {
throw new CardinalityException(columnSize(), other.size());
}
if (row < 0 || row >= rowSize()) {
throw new IndexException(row, rowSize());
}
for (int col = 0; col < columnSize(); col++) {
values[row][col] = other.getQuick(col);
}
return this;
}
@Override
public Matrix assignColumn(int column, Vector other) {
if (rowSize() != other.size()) {
throw new CardinalityException(rowSize(), other.size());
}
if (column < 0 || column >= columnSize()) {
throw new IndexException(column, columnSize());
}
for (int row = 0; row < rowSize(); row++) {
values[row][column] = other.getQuick(row);
}
return this;
}
public void testAssignUnaryFunction() {
test.assign(NEGATE);
for (int i = 1; i < values.length; i += 2) {
assertEquals("value[" + i + ']', -values[i], test.getQuick(i + 2));
}
}
public void testAssignDouble() {
test.assign(0);
for (int i = 0; i < values.length; i++) {
assertEquals("value[" + i + ']', 0.0, test.getQuick(i));
}
}
