Introduction to REGRESSION! | SSE, SSR, SST | R-squared | Errors (ε vs. e)

[@belleinspire]

I got sick with COVID a bit over a year ago. It affected me neurologically in a pretty severe way where I was left unable to think, speak, read, or remember anything for at least 9 months. I am now much improved but still struggling to navigate this new world of diminished cognitive ability I find myself in. As I am finally, slowly re-entering my PhD program (in a social science) and having to re-learn all my statistics, I am constantly running into the limitations of these new cognitive disabilities. Nothing, and I truly mean nothing, has worked for me until I found these videos. I can't thank you enough for making them. It feels like I can finally hold on to these concepts for the first time in a long time. Thank you so much for making me feel like I can actually manage to re-learn statistics and finish my PhD. It is a gift.

[@riaverma8945]

You are easily the best statistics tutor I've found online- I am SO appreciative of these videos and the time you take to create them!

[@hustle-kn5xp]

I have to square my life then to get rid of all that negativity

[@AriPotter]

LOL.

[@feelthemoment9552]

how do we square life?

[@satishhicks2762]

@@feelthemoment9552 live life to the fullest with out any regrets of past. Only present moment awareness.

[@chideramarvisonumaku3867]

🤣🤣

[@jenniferyates3032]

That's cool I was just thinking of using mean in a joke. Lol

[@feanordidnothingwrong]

I'm a first semester MBA student who's never had anything beyond college algebra, and this video made me feel so much better about my stats final next week! I learned more in 15 minutes with this video than I did in the last 3 weeks of class. Just being able to pause, rewind, and think about what you said for a minute helped me so much. I may actually do well on the final next week!

[@rohitekka2674]

Absolutely...9 years later your created videos are still saving countless student lives . My binge watching has changed from Netflix to your regression series xD

[@bennychun1021]

Even for doctors preparing for their board exams , such a life saving video

[@manishleekha7803]

@@bennychun1021 How did it go? :)

[@V_683]

No teacher no book has explained me as well as you. Thank you ever so much! You are a very gifted teacher by nature.

[@suhasjadhav1610]

Justin I must say you are one of the those precious teachers who can explain complicated statistics concepts in a very intuitive and simplistic manner. Kudos to you!!!!!

[@강병규-u6d]

As I just start to learn Statistics and Data Science, this lecture (I can't call this just 'video') is 10 times useful and helpful than real class to understand what Regression is. I've been watching whole 5 series over 5 times each and get close to clear understanding. I dare to ask lecturer to create more lectures to save many students who are still suffering from a confusion of concepts.

[@zedstatistics]

Thanks for the lovely comment! I'm putting many more videos up these days, hope you enjoy :)

[@PunmasterSTP]

I know it's been a long long time, but I was just curious; how'd the rest of your class go?

[@SportsMarvels121]

No body in the whole KZbin would have the intuitive mind like you and the intuitive way of teaching. You just amaze me by your intuitive way of teaching everytime that i want to be a teacher like you. I want my student to love me as i love you because of your method and keeping away from formulas etc

[@gauravjeet2181]

this is by FAR THE BEST regression explanation i have seen ...i attaneded a 3 hour lecture and couldnt make a head and tail of the prof at ASU ...but voila u did the magic !

[@stevstrums23]

same here.. they on some bs at asu bro

[@pandabearmonster]

What I got from this video is enlightenment. When searching for SSE and SSR on youtube I was either gonna click on a pretty lady's thumbnail or this handsome man's thumbnail. So glad I clicked yours. Oh dear, the accent really helped too. I digress. Really good video, I seriously finally understood. Thanks!

[@liuqing1995]

I started to learn statistics in August of 2018, while today is the first day I understand SSE, SSR, and SST. Thank you so much!

[@JosiahBull-v6f]

This is such an helpful video. I've been beating my head against a brick wall trying to understand linear regression from Kaplan Schweser and the CFAI, and your explanation granted more understanding in 5 minutes then over 6 hours somewhere else. Thank you!

[@morganloveslace]

I've been taking a data analysis course at uni and watching this has made the concepts I've learned fit together far more intuitively. Thanks Zed!

[@PunmasterSTP]

How did the rest of your class go?

[@outrightmed]

It's rare that every word in a video on statistics is made understandable. Great job!

[@arunprx]

It would be nice if the trainer also explains that many professors call what the trainer calls here as SSR as SSE and vice versa. In those cases, SSE is the Explained Sum of Squares and SSR is the Residual Sum of Squares.

[@zedstatistics]

Hi, there's a pop up comment that explains this at 8:51. I understand that it might not be visible on mobiles, so apologies. In Australia we use SSR = Sum of Squares due to Regression. SSE = Sum of squares due to Error.

[@szewahchan6753]

Thank you so much Arun. I was confused. Your reminder really helps.

[@itskathan7940]

Please pin this comment! This is very helpful :)

[@JamesJon1187]

@@zedstatistics I'm on a desktop, but it doesnt come out.

[@JamesJon1187]

@Arun Thank you!

[@koridean6258]

someone please tell me why this man perfectly explained in 15 minutes what my professor has been trying to explain to me for the past 2 months

[@mohammedemran8626]

such an amazing explanation of regression. I have searched a lot of video clips. this is the best to get the concept of regression. Amazing. I think the rest four on regression will also be nice like this.

[@zedstatistics]

You betcha. Check out the playlist I've created for them in my channel. :)

[@madj0312]

I'm watching a 9-year-old video on 10/5/2020. The best explanation video I can say. I was confused even after half an hour of searching and he explained everything in a detailed manner with the appropriate choice of words. Thank you very much.

[@nareshhh96]

Several hours after diving into a regression rabbit hole on KZbin, I can condiently say that this is the most intuitive explanation I found. Thanks a lot, Zed!!

[@SiddhantSethi02]

This literally is the best explanation of the regression terminologies. I have had so much confusion despite reading so many text and videos. However, your explanation was so eloquent, precise and to the point. Thank you very much for your contribution :D

[@liamaldensmith1779]

Wow dude, you're going to help me actually pass this quantitative analysis class for my public policy degree. I was really worried that i just couldn't understand this stuff until now. Thank you for breaking things down and making them so simple and straightforward. This actually makes sense now.

[@PunmasterSTP]

I'm just curious; how'd the rest of the class go?

[@rafaelerwin]

Gosh! You're the best stats/econometric teacher I've found so far explaining this!

[@szewahchan6753]

The colouring system matching the equations and graph really helps. Thank you!

[@sausagelamo]

in 2 minutes I understood what my teacher was trying to explain over a week

[@ashishk81]

Vis o length is 15 min , how did you understand it in 2 minutes

[@MuhdIzzatFarhan]

clown

[@jeevanpati1993]

he meant the essence of regression, as to why we do it. that is well captured within the first 2 mins of the lesson.

[@EmilParkour]

@@ashishk81 The statement can still be true. In 2 minutes, they understood what took the teacher over a week. Say it was exactly one week as an easier example: Then in 4 minutes it would be the equivalent of 2 weeks with their teacher. In 8 minutes it would equate to 4 weeks. As "Vis o length is 15 min" it means it would have taken their teacher over 7.5 weeks. Maybe you should learn statistics ;) lol

[@EmilParkour]

@@ashishk81 Also, just for lolz, I watch tutorials at 2 times speed and i skip to the next part when I've understood the current concept, since there is often repetition or examples. I understood this lesson in way under 15 minutes. So it's not like all brains work at the same speed. Hell some people can read a 1000 page book in a day.

[@MisterLobb]

The best lessons can be put in the simplest terms. This is a great resource for algebra teachers and their students.

[@jaypod]

Thanks heaps for this series mate. I'm taking a course (Data Analysis for social scientists) from MIT and it's so bad that I'd almost given up. I usually write down the concepts in a notebook and try to make sense of things. But it wasn't working for that course. This has helped a lot more than those taught by Nobel prize winning instructors! No offense to them but your content is a lot easier to follow and understand the intuition behind it all. I'll attempt that course again after going through your material. I can never thank you enough. Hope things are better in Sydney. We're under stage 4 curfew here in Melbourne. Good time to gain some knowledge. Hopefully I can contribute to the community in future. Cheers mate.

[@zedstatistics]

Much love for the Victorians out there.

[@jaypod]

@@zedstatistics Thanks man. :)

[@PunmasterSTP]

Hey I came across your comment and was just curious. How did the rest of the class go?

[@jaypod]

@@PunmasterSTP hey.. yeah, the course was okayish. I was probably a bit too harsh in my original comment. But given a chance I wouldn't do it again. If someone is a complete beginner the course is going to be overwhelming as it covers a lot of stuff but only at a very shallow level. If someone already knows these stuff then they might gain some value out of it. It doesn't teach R either and expects students to know how to program in R before starting the course. Depends on what you're trying to achieve. I liked the Machine Learning course. The Probability and the Statistics courses are amazing. But they're very theoretical and teach the mathematics and intuition behind those formulae and even derive many of those. I'm looking forward to the Python Data Analysis course this May. It's replacing the Data Analysis for social scientists course!

[@PunmasterSTP]

@@jaypod I definitely know the feeling about "hidden prerequisites" and unreasonable expectations. I'm glad there were some good qualities to your courses, and I'm glad to hear about the Python Data Analysis class!

[@sandeepandu]

SSRegression=ExplainedSS and SSError=ResidulaSS, for those who are saying it's a mistake. It's just a matter of notation. The video is 100% correct.

[@AeroMx8]

Very good explanation. Would have been great if I saw this before my exam, but at least I have a better understanding of this, which I can apply in the future.

[@Mica_No]

Wow youre the manifestation of staying positiv

[@xingyewang2242]

Absolutely even after 7 years

[@anishnehete]

@@xingyewang2242 facts

[@cakefactoryy]

This video is amazing; it helped me so much!👍

[@emsdy6741]

This channel deserves a million subscribers. I am glad I found it. This helps me understand statistics.

[@zedstatistics]

Hey SSaB, thanks for the comment. Check my reply to Sachin's comment below (as he had the same problem). It might be an Australian/American difference, but depending on what E and R stand for, the meanings might be reversed. My advice? Never just write SSE and SSR. It's one of the more annoying inconsistencies in stats - so always take pains to explicitly what the letters stand for (in someone elses explanation, as with your own work!). Hope that clears it up!

[@shreyagovil8641]

The best explanation I have watched till now !

[@hariomhudiya8263]

10yrs ago this was created still one of the finest well explained video on the topic , hats off to the creator👏

[@cashorts748]

He is actually my teacher in school LOL😄

[@PunmasterSTP]

What is regression? More like "Your videos are certainly impressin'!" Thanks for making and sharing them; they had some of the clearest descriptions I've seen anywhere in KZbin.

[@kelly_browning]

Man this is so much better than the explanation I received from my online course (from a Business School)!! Great job and THANK YOU!!

[@sprokkelmof]

you are saving my life here man. Have an exam in statistics tomorrow, which i am deff going to fail, but im going to watch your videos and try to catch up with everything for my re exam in 2 months. The books and colleges i got from my university are as if they are in chinese to me; this is so much more understandable!

[@rider2731]

You are so talented in explaining it. You spoke clearly and articulately. It makes it easy for others to follow. I wish I had professors like you when I was in college. Great job, thank you for sharing. Please make more videos of the same kind.

[@feelthemoment9552]

These details i searched everywhere and i found those here...I am always like to learn so deep like you teach in deep.

[@jmelb7840]

Thanks buddy, for making the effort to produce this useful explainer video. I'm currently doing a part-time MBA and having trouble understanding the statistics class. 9 years after your post, viewers like me are still benefiting! - Your new subscriber from Melbourne

[@honeyjain6655]

This is just amazing, I read thrice the CFA curriculum, which is written by PhD, Masters, but couldn't understand the single thing. Kudos to our new quants prof.

[@qianwu1873]

The population regression function was something I didn't pay attention to before, but learning more about it from your video really helps me understand the regression concepts better!! Thank you!

[@laryneskridge-williams4194]

OMG thank you for this simplified, clear, and concise explanation on regression. I never had an instructor clearly explain the coefficients and symbols, which is why it's so intimidating for me to complete a formula. I still have some questions about the estimates for B0 and B1, but overall very helpful. THANK YOU!

[@RichardGoza]

My goodness! is all I can say. I have been in limbo in my data mining classes because the professor just keeps talking and talking, and I can't seem to understand anything. Your videos have been a lifesaver. Not all professors ought to be teaching, and this is why students sometimes grow weary of going to school because some professors are better at research than teaching.

[@yaling1865]

still saving students 11 years later. Thank you sir!

[@shadrinan90]

Thank you! I am studying for CFA and regrettably they do not provide such pictures as you. Your explanations are soooo clear!

[@jeremy_fragrance_desi]

This god is still liking comments legend.

[@asmitasengupta3966]

The most beautiful video on regression series that I have come across. You are simply amazing!

[@gauravgupta2266]

Thank you for the great video. After searching the whole internet probably one of the best explanations I found so far!!

[@R_Ash131]

I have to admit, your video is the best in this topic anyone can find out here! I mean.. by far is best!! Hat's off 👌👊

[@iroastyoutubers9793]

Bro this was like legit the Enlightenment

[@zedstatistics]

Flattered. Especially coming from a roaster on the reg.

[@juliocezarsilva5979]

Your explanation of SSE is what sold me. Thank you Zed, and I'll be seeing ya.

[@lessthanzero.]

The visual on the SSR, SSE, and SST did it for me. Amazing vid

[@ahnafislam6004]

NOBODY explains stat quite like you do..Brilliant job!

[@MrSiddhantsaini]

You're a genius in explaining concepts. you made it look like a grade 4 class.

[@jpart0317]

Very informative and easy to follow along..I find a lot of other stat videos a bit confusing and difficult to follow but this video was perfect . Thank you so much.

[@isabellasanar2143]

This is the most helpful video I have ever seen for my stats class! Thank you so much. I hope both sides of your pillows are cold at night.

[@thukral98]

I owe u my success in CFA examination...will never forget regression for my entire life.

[@DFCinBE]

Absolutely brilliant ! You've been able to explain some of the things that were confusing me for a long time ! Thanks so much for your videos !

[@tushtichakraborty4149]

Oh. My. God. This is the best video I have ever seen on Regression basics. You're so coooool, sir. I wonder how you taught yourself this because it's pure genius. I am so happy, I am really struggling with Regression Analysis, that too simple reg. Idk what would happen in multiple regression.

[@sillymonger]

I love you... thank you so much! I will name my 14th child after you. Seriously though, keep up the amazing explanations!

[@internetuser2291]

You videos are a gift for me as i struggle to understand stat,your videos make things clear as day.. May Allah grant you a long peaceful life...

[@riderblack6401]

Great vid, that I will recommend to anyone who is beginning in his machine learning or python career.

[@Alptraum669]

Your goddamn avatar

[@harshsingh0996]

i know the level of hardwork to make this type of quality videos . thank you so much

[@Animewriter13]

Thank you! I went to class today and the professor just confused me. You are a life saver!

[@Robsay01]

This is a rally good presentation of this complicated topic!! Well done!!

[@AZacLife]

Thank you so much, after hours studying SLR through other mean and getting nowhere, I finally cracked it thanks to your little video!

[@TheOntheskies]

Now i will never forget what's SSE, SSR, and SST. Thank you so much, bro!

[@dreamdamons4576]

Omg. Best elaboration i have found on youtube so far. Thanks

[@zedstatistics]

Glad you dig, Freddie!

[@chetanshastry9040]

This is the best among any regression videos, Thanks sir

[@pupface]

This is a great explanation. I never understand why you have to take the square rather than the absolute value

[@planetx1823]

I was so scared of topics like this (I am trying machine learning kinda a newbie) but now i feel encouraged...You taught it so well...thank you

[@TheAthakur]

Thank you so much for this series. It beautifully binds the interpretation of results with the mathematical concepts behind the regression model. I could not find any other lecture (online or offline) doing that for me. Is there any chance of you covering SEM?

[@mahmoudalmahamid2658]

yeseedak Rabi. Perfect explanation!!!! My professor confused me and you fixed it:) Keep going, dude.

[@sheebee8398]

Thank you very much. It shows that diverse approaches and perspectives will help the populace as a whole, come to a greater understanding of life's complexities.

[@christophmichel9496]

Needed to pause the session to leave a comment, even if i am a couple of years to late .... you are really an awesome teacher. If you are not already teaching, think about to do it , the world needs people like you who can explain things in a way that even a stone would understand. Just saying, I had a lot people trying to teach me and normally it requires me doing research at home, teaching basically myself to understand and make use of what was taught to me but with you and your statistic videos I don't feel a research at home is necessary. Ok, in that sense your videos are my research at home but I was not taught before.

[@zedstatistics]

Thanks so much, CM. You'll be glad to know I've become a high school teacher just this last year :)

[@jlin74]

Wow! Better explained than my college professor. I wasted thousands of dollars! Thank you!!!!

[@dasbootyliciousness271]

You are a god amongst humans! Thank you for giving an understanding what SSE, SSR and SST are all about.

[@yuvikayadav8203]

Oh my god this is so good and useful. My bachelor degree is failed in front of this. I could just watch all these videos here and get more knowledge than I would ger through my books.

[@honeyahuja474]

thanks a lot Justin. Your explanation is just awesome!Never seen a video with such a clear explanation. I was so afraid of understanding Regression but you made my day :) thanks again!Cheers (y)

[@smoothacceleration437]

Crazy good video. Made me understand regression like no other text or video ever. Brilliant.

[@thm4337]

This video was helpful for me, especially because of the graphics you have used in order to explain the different terms. They are awesome. Thank you very much!

[@kulinjichisema2754]

Understandable, I like the presentation. I was afraid of exams, now I'm more than ready.

[@sridharalla1269]

This got to be the best video on regression. This is simply superb, really like it.

[@Jinsun202]

You're one smart cookie. Very well presented and explained.

[@VeritasVincitur]

The best introduction video about regression ! Many Thanks Sir !!!

[@nyczcrzyazn1]

You explained the concepts better than my professor! Thank you!!

[@MyMy-tv7fd]

this is a top quality presentation, I wish I had been able to see it when I did my degree (which contained two years of undergrad stats)

[@HamletNOR]

This was a VERY good video mate. I learned so much from this after seeing it several times now! Have a great weekend!

[@joeaustinathimalamaria624]

Man you're the best. Wish you were my teacher. Most forums or websites say that sse = ssr.

[@bbishyy]

I think it's amazing how you can explain this to me better than my real life instructor at my "high ranked" university. Thanks

[@ShaneGuzman]

You are awesome. The textbook I am reading is making this topic more confusing than needed. Thanks for your explanation. Keep on.

[@visheshagrawal1647]

Thankyou for saving our Econometrics paper for bsc economics/ statistics students. Love from India ✨🫶

[@pedrerorey]

I understood more in this video than in class! Thanks a lot!

[@ruthnwofor7063]

I appreciate this from the bottom of my heart.

[@idabrit]

Amazing! I'm a postdoc coming from a qualitative background but now moving into a more quant space, and I'm missing really fundamental principles of this stuff which are explained beautifully here. People trying to teach me stats tend to toss out 'obvious' statements like "and of course this R2 tells us how much of the variance is explained by the model", and I had NO IDEA what that meant until today!

[@rudysetyopurnomo4635]

Great lectures easy to understand

[@berryblack1977]

Brilliant explanation, the visualization is very helpful. Thank you

[@atulkrishna4992]

There isn’t a better explanation ! Thanks mate !

[@zedstatistics]

Too kind!

[@HarpreetSingh-ke2zk]

Such a nearly true line (simple videos) fits (clears) my data points (doubts).