public override void Backward(Scalar <int> delta, Backpropagation bp)
{
if (DistributionGradient == null)
{
if (Reward == null)
{
throw new Exception($"No Reward was provided for ReinforceCategorical. Can't Backward");
}
DistributionGradient = delta.As <float>() * (Reward - Baseline) / Distribution.Item[this] * Op.OneHot <float>(Distribution.Shape, new[] { this }, 1f);
}
bp.PushGradientTo(target: Distribution, delta: DistributionGradient);
bp.PushGradientTo(target: Baseline, delta: (Baseline - Reward));
}
public void As_SIUnitSystem_ThrowsArgumentExceptionIfNotSupported()
{
var quantity = new Scalar(value: 1, unit: Scalar.BaseUnit);
Func <object> AsWithSIUnitSystem = () => quantity.As(UnitSystem.SI);
if (SupportsSIUnitSystem)
{
var value = (double)AsWithSIUnitSystem();
Assert.Equal(1, value);
}
else
{
Assert.Throws <ArgumentException>(AsWithSIUnitSystem);
}
}
public override void Backward(Scalar <T> delta, Backpropagation bp) => bp.PushGradientTo(x, delta.As <U>());
