Can someone explain to me the difference between a cost function and the gradient descent equation in logistic regression?

Question

I\'m going through the ML Class on Coursera on Logistic Regression and also the Manning Book Machine Learning in Action. I\'m trying to learn by implementing everything in Pytho

Answer 1

Cost function is something is like at what cost you are building your model for a good model that cost should be minimum. To find the minimum cost function we use gradient descent method. That give value of coefficients to determine minimum cost function