public void SliceDimension()
{
var c = new DataCube3 <int, int, int, int>();
c.Set(0, 0, 0, 1);
c.Set(0, 0, 1, 2);
c.Set(0, 1, 0, 3);
c.Set(0, 1, 1, 4);
c.Set(1, 0, 0, 10);
c.Set(1, 0, 1, 20);
c.Set(1, 1, 0, 30);
c.Set(1, 1, 1, 40);
var firstDimensionSlices = c.SliceDimension1();
Assert.Equal(2, firstDimensionSlices.Values.Count());
var zeroSlice = firstDimensionSlices.Get(0).Get();
Assert.Equal(4, zeroSlice.Values.Count());
Assert.Equal(1, zeroSlice.Get(0, 0).Get());
Assert.Equal(2, zeroSlice.Get(0, 1).Get());
Assert.Equal(3, zeroSlice.Get(1, 0).Get());
Assert.Equal(4, zeroSlice.Get(1, 1).Get());
var oneSlice = firstDimensionSlices.Get(1).Get();
Assert.Equal(4, oneSlice.Values.Count());
Assert.Equal(10, oneSlice.Get(0, 0).Get());
Assert.Equal(20, oneSlice.Get(0, 1).Get());
Assert.Equal(30, oneSlice.Get(1, 0).Get());
Assert.Equal(40, oneSlice.Get(1, 1).Get());
}
public void Transform()
{
var c = new DataCube3 <int, int, int, int>();
c.Set(0, 0, 0, 1);
c.Set(0, 0, 1, 2);
c.Set(0, 1, 0, 3);
c.Set(0, 1, 1, 4);
c.Set(1, 0, 0, 10);
c.Set(1, 0, 1, 20);
c.Set(1, 1, 0, 30);
c.Set(1, 1, 1, 40);
var sum = c.Transform(_ => Position0.Create(), (a, b) => a + b);
Assert.Equal(1 + 2 + 3 + 4 + 10 + 20 + 30 + 40, sum.Value.Get());
var Position = c.Transform(_ => Position0.Create(), (a, b) => a * b);
Assert.Equal(1 * 2 * 3 * 4 * 10 * 20 * 30 * 40, Position.Value.Get());
var firstDimensionSums = c.Transform(p => Position1.Create(p.ProductValue1), (a, b) => a + b);
Assert.Equal(2, firstDimensionSums.Values.Count());
Assert.Equal(1 + 2 + 3 + 4, firstDimensionSums.Get(0).Get());
Assert.Equal(10 + 20 + 30 + 40, firstDimensionSums.Get(1).Get());
}
public void RollUpDimension()
{
var c = new DataCube3 <int, int, int, int>();
c.Set(0, 0, 0, 1);
c.Set(0, 0, 1, 2);
c.Set(0, 1, 0, 3);
c.Set(0, 1, 1, 4);
c.Set(1, 0, 0, 10);
c.Set(1, 0, 1, 20);
c.Set(1, 1, 0, 30);
c.Set(1, 1, 1, 40);
var withoutFirstDimension = c.RollUpDimension1((a, b) => a + b);
Assert.Equal(4, withoutFirstDimension.Values.Count());
Assert.Equal(1 + 10, withoutFirstDimension.Get(0, 0).Get());
Assert.Equal(2 + 20, withoutFirstDimension.Get(0, 1).Get());
Assert.Equal(3 + 30, withoutFirstDimension.Get(1, 0).Get());
Assert.Equal(4 + 40, withoutFirstDimension.Get(1, 1).Get());
var thirdDimension = withoutFirstDimension.RollUpDimension1((a, b) => a + b);
Assert.Equal(2, thirdDimension.Values.Count());
Assert.Equal(1 + 10 + 3 + 30, thirdDimension.Get(0).Get());
Assert.Equal(2 + 20 + 4 + 40, thirdDimension.Get(1).Get());
}
/// <summary>
/// Creates a new 3-dimensional data cube.
/// </summary>
public static DataCube3 <P1, P2, P3, TValue> Create <T, P1, P2, P3, TValue>(
IEnumerable <T> source,
Func <T, P1> p1,
Func <T, P2> p2,
Func <T, P3> p3,
Func <T, TValue> value)
{
var dataCube = new DataCube3 <P1, P2, P3, TValue>();
foreach (var v in source)
{
dataCube.Set(
p1(v),
p2(v),
p3(v),
value(v)
);
}
return(dataCube);
}
