public void testOne() {
DenseMatrix A = ones(3, 3);
System.out.println(A);
DenseMatrix B = ones(3, 3);
System.out.println(B);
DenseMatrix C = A.mmul(B);
System.out.println(C);
assertEquals(3.0, C.get(0, 0));
assertEquals(3.0, C.get(0, 2));
assertEquals(3.0, C.get(2, 0));
assertEquals(3.0, C.get(2, 2));
}
public void testVarOverRows() {
SparseMatrixLil A = new SparseMatrixLil("1 5 3; 2 8 5");
DenseMatrix B = meanOverRows(A);
assertEquals(3, B.cols);
assertEquals(1, B.rows);
assertEquals(1.5, B.get(0, 0));
assertEquals(6.5, B.get(0, 1));
B = varOverRows(A);
assertEquals(3, B.cols);
assertEquals(1, B.rows);
assertEquals(0.5, B.get(0, 0));
assertEquals(4.5, B.get(0, 1));
}
public void testVarOverCols() {
SparseMatrixLil A = new SparseMatrixLil("1 5 3; 2 8 5");
DenseMatrix B = meanOverCols(A);
assertEquals(1, B.cols);
assertEquals(2, B.rows);
assertEquals(3.0, B.get(0, 0));
assertEquals(5.0, B.get(1, 0));
B = varOverCols(A);
assertEquals(1, B.cols);
assertEquals(2, B.rows);
assertEquals(4.0, B.get(0, 0));
assertEquals(9.0, B.get(1, 0));
}
public void testConstructorByString() {
DenseMatrix foo = new DenseMatrix("1 3; 5 7; 3 5");
assertEquals(3, foo.rows);
assertEquals(2, foo.cols);
assertTrue(foo.equals(new DenseMatrix(new double[][] {{1, 3}, {5, 7}, {3, 5}})));
assertEquals(5.0, foo.get(1, 0));
assertEquals(7.0, foo.get(1, 1));
}
