Logistic Regression: The Cost Function Is Not Decreasing

I’m a currently doing Andrew Ng course on coursera, I tried to used what I learned about logistic regression on a dataset. But I can’t make the cost function to decrease. I tri

Solution 1:

Fixed, I dont know why i wrote np.sum before the gradient. But now works

grad = lambda h,y,x : x.T@(h-y))/m