@Test
public void testSum_double_array() {
logger.info("\ntesting sum(double[] input, int...endPoints)");
double[] input = null;
assertEquals(0.0, MathUtil.sum(input), 0.0);
assertEquals(0.0, MathUtil.sum(input, 0), 0.0);
assertEquals(0.0, MathUtil.sum(input, 0, 57, 3), 0.0);
input = new double[] {1.0, 2.0, 3.0, 4.0};
assertEquals(10.0, MathUtil.sum(input), 0.0);
assertEquals(3.0, MathUtil.sum(input, 0, 1), 0.0);
assertEquals(6.0, MathUtil.sum(input, 0, 2), 0.0);
assertEquals(10.0, MathUtil.sum(input, 0, 3), 0.0);
assertEquals(10.0, MathUtil.sum(input, 0, 4), 0.0);
assertEquals(2.0, MathUtil.sum(input, 1, 1), 0.0);
assertEquals(5.0, MathUtil.sum(input, 1, 2), 0.0);
assertEquals(9.0, MathUtil.sum(input, 1, 3), 0.0);
// with indeces out of bounds
assertEquals(9.0, MathUtil.sum(input, 1, 4), 0.0);
assertEquals(9.0, MathUtil.sum(input, 4, 1), 0.0);
input =
new double[] {
1.3310000000000004, 1.3310000000000004, 1.3310000000000004, 1.3310000000000004
};
double[] cumBins = MathUtil.cumProd(input, true);
logger.debug(ListArrayUtil.arrayToString(cumBins));
int regularContribution = 1;
logger.debug(cumBins[0] + regularContribution * MathUtil.sum(cumBins, 1, cumBins.length - 1));
}
@Test
public void testCumprod_double_array() {
logger.info("\n testing cumProd(double[] array, boolean...reverse)");
double[] input = null;
double[] result = null;
result = MathUtil.cumProd(input);
assertEquals(0, result.length);
input = new double[] {};
assertEquals(0, MathUtil.cumProd(input).length);
input = new double[] {1.0, 2.0, 3.0, 1.0, 2.0, -1.0, -1.0};
result = MathUtil.cumProd(input);
assertEquals(7, result.length);
assertEquals(1.0, result[0], 1.0);
assertEquals(2.0, result[1], 1.0);
assertEquals(6.0, result[2], 1.0);
assertEquals(6.0, result[3], 1.0);
assertEquals(12.0, result[4], 1.0);
assertEquals(-12.0, result[5], 1.0);
assertEquals(12.0, result[6], 1.0);
result = MathUtil.cumProd(input, true);
assertEquals(7, result.length);
assertEquals(-1.0, result[6], 1.0);
assertEquals(1.0, result[5], 1.0);
assertEquals(2.0, result[4], 1.0);
assertEquals(2.0, result[3], 1.0);
assertEquals(6.0, result[2], 1.0);
assertEquals(12.0, result[1], 1.0);
assertEquals(12.0, result[0], 1.0);
input =
new double[] {
1.3310000000000004, 1.3310000000000004, 1.3310000000000004, 1.3310000000000004
};
logger.debug(ListArrayUtil.arrayToString(MathUtil.cumProd(input, true)));
}