Least Square Method (Curve Fitting)

Least square method or Least square regression is an approach followed in curve fitting, where we obtain the best-fit curve/line corresponding to a set of data points. This approach tries to minimize the sum of the square of the errors (or residuals) in the set of data points.

In this video, I try to obtain the slope and intercept of a best fit straight line passing through a set of data points using the Least square method.

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[shashik]

Key takeaway: To get the ideal/desired/expected straight line through the scattered dots (x-y plot), minimize the error values and keep the line as close to the dots as possible. Error values can be negative, so minimize the square of error values. Hence, the concept "Least Square Method".

Wow! This indeed is among the best explanations on LS method. Kudos to the teacher. Thanks.

[tehnoplus]

You are the best at explaining the linear regression on youtube! Kudos!

[whovikrantsingh]

Wow! Outstanding explanation. "For The Love Of Physics" is one of my most favorite YouTube channel for a reason, and that reason flashes in front of my eyes everytime.

[gopalpandit]

I am a pharmacy student, tried hard to find and learn this curve fitting but this video just solved all my hustle over browsing and understand little by little. Would say you explained it in the best possible way it could have been. Thankyou.

[sauravkumar]

Great Explanation. Cleared all the doubts in one go. Loved it.

[vartikaggarwal]

Awesome content delivered with such an ease.Hats off to you sir!

[michellemathew_ximb]

explained in an extremely concise manner! thank you very much sir :)

[deepakgori]

Best explaition sir. You are great, keep making such type videos and one day world's best scientist, economist will become from india.

[pedromoresco]

Hey man, congratulations from Brazil! Very good material, I finally understand this method! Thank you so much!

[QariMuhammadAbbas]

The best explanation of least square.
Wonderful!!!

[AnkitDAS-rx]

Thanks bhaiya bohot achhe se samjhayan Hain aapne... Thanks a lott❤

[halani]

thanks so much, infact i have understood this without having to cram the formulae.

[porershines]

Thanks Sir, unbelievably your video permanently fixed least square method in my mind.

[nonstoplove]

Best explanation . I'm satisfied.

[bimblebom]

Totally brilliant! You have a gift which is rare, i.e. the gift of teaching. Do you have a Patreon account? If you don't then you should get one.

[siddhantbhandari]

sir, you make your thoughts as a tool in real problems explanation, that was nice and ever wonderful explanation on mathematics.

[nagarajamk]

Great way of explaining ---- I am impressed

[SAURABHKUMAR-dwhx]

amazing sir,
I am an Engineering Student from IIT Kanpur,
Mujhe jo teacher ne padhata the such me kuch samjh nhi aya but appse padhne ke baad,
I was like, Ye kya h
thank you sir 😊😊😊😊😊😊

[gauravgupta]

You have cleared my concept about least square method better than my professor who teaches us numerical analysis .

[rajkir]

This is really awesome!
I am learning data science.
Plz do a tutorial on logistic regression