Least Squares II: Linear Regression 

This is by far the best explanation of how the slope and intercept are found using a matrix formulation.

finally someone explains where those formulas come from, thank you!!!

Thank you, I finally found someone who explains the math and does it without a computer or a calculator. I looked at numerous videos before I found you. You provide a complete answer. I look forward to seeing more of your videos.

You rock, thanks for clearly defining how the least squares solution is calculated in both matrix form and with the simple summation formulas. I finally think I understand how the two correspond. It helped me figure out the MATLAB code for my computer vision course.

Why isn't there a heart button that i could click for this video... saviour!!!

Thank you for these videos, sir. They've made this topic very clear to me.

You are a great teacher. Thank you.

Excellent simply and clearly explained video, thank you

Professor Lorenzo, I didn't quite catch how you got the matrix from the coordinates.

Thnak you very much, that was very well explained

Shouldn't it be 'm' with a super script of x^(i)? data points because n and the subscripts are used to denote columns or other features?

Thank you very much ,i could understand very well!!!!

Thank you

awesome!!!!!!!!!!!!!!!!!!!!!

AWESOMENESSS.....!!

i feel like crying thanks alot......the test is dead on monday

How it c. We have it as HW and i cant solve it 😭😭

Couldn't find anthing like it on youtube