@Test
public void testFieldStats() {
Field uniform = Data.makeColumnField("a", "label", new Object[] {100, 200, 300, 400, 500, 600});
Field uniformWithMissing =
Data.makeColumnField("a", "label", new Object[] {100, 200, null, 300, "a", 400, 500, 600});
Field peak = Data.makeColumnField("b", "label", new Object[] {1, 2, 2, 2, 2, 2, 2, 3});
Field skew = Data.makeColumnField("c", "label", new Object[] {1, 1, 1, 1, 1, 2, 2, 2, 5, 10});
Field a =
Data.makeColumnField("f", "label", new Object[] {0, 1, 1, 1, 1, 2, 2, 2, 5, 10, 100, 1000});
Field b = Data.makeColumnField("f", "label", new Object[] {10, 20, 30, 40, 22, 50, 60});
uniform = uniform.dropData();
uniformWithMissing = uniformWithMissing.dropData();
peak = peak.dropData();
skew = skew.dropData();
a = a.dropData();
b = b.dropData();
// Basics
assertEquals(6, uniform.rowCount());
assertEquals(8, uniformWithMissing.rowCount());
assertEquals(350, uniform.numericProperty("median"), 0.01);
assertEquals(350, uniformWithMissing.numericProperty("median"), 0.01);
assertEquals(2, peak.numericProperty("median"), 0.01);
assertEquals(1.5, skew.numericProperty("median"), 0.01);
assertEquals(2, a.numericProperty("median"), 0.01);
assertEquals(30, b.numericProperty("median"), 0.01);
assertEquals(200, uniform.numericProperty("q1"), 0.01);
assertEquals(200, uniformWithMissing.numericProperty("q1"), 0.01);
assertEquals(2, peak.numericProperty("q1"), 0.01);
assertEquals(1, skew.numericProperty("q1"), 0.01);
assertEquals(1, a.numericProperty("q1"), 0.01);
assertEquals(21, b.numericProperty("q1"), 0.01);
assertEquals(500, uniform.numericProperty("q3"), 0.01);
assertEquals(500, uniformWithMissing.numericProperty("q3"), 0.01);
assertEquals(2, peak.numericProperty("q3"), 0.01);
assertEquals(2, skew.numericProperty("q3"), 0.01);
assertEquals(7.5, a.numericProperty("q3"), 0.01);
assertEquals(45, b.numericProperty("q3"), 0.01);
assertEquals(100, uniform.numericProperty("granularity"), 0.01);
assertEquals(100, uniformWithMissing.numericProperty("granularity"), 0.01);
assertEquals(1, peak.numericProperty("granularity"), 0.01);
assertEquals(1, skew.numericProperty("granularity"), 0.01);
assertEquals(1, a.numericProperty("granularity"), 0.01);
assertEquals(2, b.numericProperty("granularity"), 0.01);
}
