private void AssertNetGradient(BackpropAlgorithm alg, double[][,] data, double[] expected)
{
var weights = alg.Net.Weights;
for (int i = 0; i < weights.Length; i++)
{
var w = weights[i];
if (w == null)
{
continue;
}
var g = alg.Gradient[i];
for (int j = 0; j < w.Length; j++)
{
var prev = w[j];
var actg = g[j];
AssertDerivative(x =>
{
w[j] = x;
var loss = alg.FeedForward(data, expected);
w[j] = prev;
return(loss);
}, prev, actg);
}
}
}