Function derivative_c

ann_class/regression.py:67–68

(Y, Yhat)

  return (Y - Yhat).dot(Z)

def derivative_c(Y, Yhat):
  return (Y - Yhat).sum()

def derivative_W(X, Z, Y, Yhat, V):
  # dZ = np.outer(Y - Yhat, V) * (1 - Z * Z) # this is for tanh activation