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Crossvalidation added

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This commit is contained in:
Niklas Birk
2019-06-30 23:59:49 +02:00
parent 757eb4dd2b
commit 6937e28cdd
12 changed files with 787 additions and 34 deletions
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49
test/machine_learning/VectorTest.java
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@ -24,10 +24,10 @@ class VectorTest
var v1 = new Vector(1d, 2d);
var v2 = new Vector(3d, 4d);
var result = v1.add(v2);
var actual = v1.add(v2);
var expected = new Vector(4d, 6d);
assertEquals(expected, result);
assertEquals(expected, actual);
}
@Test
@ -36,10 +36,10 @@ class VectorTest
var v1 = new Vector(1d, 2d);
var v2 = new Vector(3d, 4d);
var result = v1.subtract(v2);
var actual = v1.subtract(v2);
var expected = new Vector(-2d, -2d);
assertEquals(expected, result);
assertEquals(expected, actual);
}
@Test
@ -48,10 +48,10 @@ class VectorTest
var v1 = new Vector(1d, 2d);
var v2 = new Vector(3d, 4d);
var result = v1.scalar(v2);
var actual = v1.scalar(v2);
var expected = 11d;
assertEquals(expected, result);
assertEquals(expected, actual);
}
@Test
@ -59,10 +59,10 @@ class VectorTest
{
var v1 = new Vector(1d, 2d);
var result = v1.euclid();
var actual = v1.euclid();
var expected = Math.sqrt(5);
assertEquals(expected, result);
assertEquals(expected, actual);
}
@Test
@ -71,10 +71,10 @@ class VectorTest
var v1 = new Vector(1d, 2d);
var v2 = new Vector(3d, 4d);
var result = v1.distance(v2);
var actual = v1.distance(v2);
var expected = Math.sqrt(8);
assertEquals(expected, result);
assertEquals(expected, actual);
}
@Test
@ -83,9 +83,34 @@ class VectorTest
var v1 = new Vector(1d, 2d);
var div = 2d;
var result = v1.divide(div);
var actual = v1.divide(div);
var expected = new Vector(0.5d, 1d);
assertEquals(expected, result);
assertEquals(expected, actual);
}
@Test
void shouldDecreaseDimensionCorrect()
{
var v = new Vector(1d, 2d, 3d, 4d);
var decreasedDimensionVector = v.decreasedDimension();
var actual = decreasedDimensionVector.dimension();
var expected = 3;
assertEquals(expected, actual);
}
@Test
void shouldNormalizeCorrect()
{
var v = new Vector(4d, 4d, 4d, 4d);
var actual = v.normalized();
var expected = new Vector(0.5d, 0.5d, 0.5d, 0.5d);
assertEquals(expected, actual);
}
}