Example Of Gradient Descent For Linear Regression

[@MidBoss108]

A question if I may, referring to the formula, at 8:26 aren't you supposed to minus theta1 with learning rate / size of training set * sum of the whole G15 to G20 (instead of just G15)? Thanks.

[@Debesta]

what is the formula to reach error sq. ??

[@TheRatdoctor]

I think he has it wrong. Average of the sum of squares should be 68639.667 in the first iteration.

[@PrachiChaudhary-v8w]

Calculation of gradient descent requires derivate of (h(theta) - y)^2. May I know why didn't you calculate the derivative or is it just not used in practice?

[@fiacobelli]

It is baked in the algorithm.

[@AdityaKumar-sx6qk]

aren't we suppose calculate THETA1 and THETA2

[@AdityaKumar-sx6qk]

initially using linear regression coefficient formula.