func main() {
normalize(xTrain, mat64.Max(xTrain))
// max test score is 100
normalize(yTrain, 100)
yHat := forward(xTrain)
cost := cost(yTrain, &yHat)
denormalize(&yHat, 100)
fmt.Println(yHat)
fmt.Println(cost)
}
func TestCost(t *testing.T) {
var xTrain *mat64.Dense = mat64.NewDense(3, 2, []float64{3, 5, 5, 1, 10, 2})
var yTrain *mat64.Dense = mat64.NewDense(3, 1, []float64{75, 82, 93})
var expectedCost float64 = 0.011186939034305027
normalize(xTrain, mat64.Max(xTrain))
// max test score is 100
normalize(yTrain, 100)
yHat := forward(xTrain)
cost := cost(yTrain, &yHat)
if cost != expectedCost {
t.Error()
}
}