Regression II - Degrees of Freedom EXPLAINED | Adjusted R-Squared

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  • Опубліковано 6 жов 2024

КОМЕНТАРІ • 274

  • @NickFrahm
    @NickFrahm 7 років тому +217

    no idea how i have taken two stats courses yet i've never heard degrees of freedom explained, let alone with such simplicity. thank you so much, i have my final tomorrow!

    • @keatonfelipe8720
      @keatonfelipe8720 3 роки тому

      you all prolly dont give a damn but does anyone know of a method to log back into an instagram account..?
      I stupidly lost my account password. I appreciate any tricks you can give me!

    • @PunmasterSTP
      @PunmasterSTP 2 роки тому +6

      Hey I know it's been a long long time, but I just came across your comment and got curious. How did that final go?

    • @justoaktree5656
      @justoaktree5656 Рік тому +1

      Hey I know it's been a long long long time, but I just came across you guys comments and got curious. So how did that final go?

  • @putrasyafiqroslan1303
    @putrasyafiqroslan1303 4 роки тому +76

    5:58 - total eureka moment. UA-cam videos teaching me more efficiently than my university lectures.

    • @VibhorSen1993
      @VibhorSen1993 3 роки тому +1

      i feel the same :'(

    • @romanemul1
      @romanemul1 3 роки тому

      boy i learned linear algebra,calculus and computer science that way. Now im on stats because i need it for machine learning . Unis sucks big time .

  • @govindsomadas2866
    @govindsomadas2866 4 роки тому +12

    It took you two years to post this second part but the wait was totally worth it.

  • @olithyst
    @olithyst 3 роки тому +17

    Having made high score in statistics, I never felt that I really grasped the meaning of each important terms. After watching 3 of your videos, I started to truly understand statistics first time in life. Thanks so much!

  • @stevengawthorpe3545
    @stevengawthorpe3545 9 років тому +38

    The amount of time I've spent learning statistics has been wasted up until this point. This video is so damn intuitive that all the past learning is very clear. Thank you so much.

  • @finetun3d
    @finetun3d 5 років тому +19

    After all these years, I've finally found a decent explanation for the concept of R^2 and df. Can't believe they don't teach stats like this in school. Thank you so much!

  • @winstonloke2860
    @winstonloke2860 4 роки тому +7

    This explanation of Degrees of freedom blew my mind. Always i have heard degrees of freedom is n-2 but i have no clue what that meant until now.

  • @danidlfuente
    @danidlfuente 5 років тому +9

    please, don't stop. Your videos are an excellent study material

  • @zedstatistics
    @zedstatistics  11 років тому +16

    They're comin :) got a newbie called "WTF?! Normal Distribution?" to check out in the mean time. Thanks Harsh!

    • @francisxavier9736
      @francisxavier9736 4 роки тому

      zedstatistics this is beautiful explanation of degrees of freedom. Wish I knew this in Uni. Good one

  • @mumsorry
    @mumsorry 10 років тому +1

    Its pretty useful, and the way you explain d.f. is much easier than most of other people

  • @Heloisa57661
    @Heloisa57661 9 років тому +3

    This is the best explanation about degrees of freedom I've seen. Thank you very much.

  • @bogdanpanait8917
    @bogdanpanait8917 10 років тому +31

    Really enjoyed your 2 videos so far, very nice intuitive explanations. Please continue working on these!

  • @jessicadesousa3902
    @jessicadesousa3902 2 роки тому +3

    You're my absolute hero for putting these concepts into such simple terms! I think you should be a teacher!

    • @zedstatistics
      @zedstatistics  2 роки тому +8

      Now three years into being a highschool teacher thanks to comments like yours :)

    • @TemporaryForstudy
      @TemporaryForstudy 11 місяців тому

      ​​​@@zedstatisticswhat were you doing earlier? Were you working for company?

  • @temich1985
    @temich1985 6 років тому +5

    You actually did a great job taking a time explaining what those variables are unlike paid college professors who just write out solutions to the book's problems on the board while narrating it nonstop.

  • @moorthin
    @moorthin 3 роки тому

    You have explained degrees of freedom , R squared and Adjusted R Squared better than any university lecture. Thank you

  • @jee_warriorz
    @jee_warriorz 9 років тому +1

    One of the best explanation of degrees of freedom and R squared that I came across internet... Cheers!

  • @BrownCheeseBall
    @BrownCheeseBall 10 років тому +1

    I've heard others talk about degrees of freedom... but like always, you Zed it best.

  • @smoothacceleration437
    @smoothacceleration437 5 років тому

    Brilliant. I have read countless texts and seen countless videos on the subject and this is the 1st time i get an intuitive grasp.

  • @tclbr7975
    @tclbr7975 3 роки тому +1

    I just want to say thank you VERY much for the videos. I started a master in the Netherlands and it is being very very very helpful, much more than what I was seeing in the classroom.

    • @PunmasterSTP
      @PunmasterSTP 2 роки тому

      I'm just curious, how is your Master's going?

  • @auroravera4653
    @auroravera4653 4 роки тому +1

    Thanks for a great teaching video. You have explained in an elegant way so that everyone can understand. Please continue with your work. Simply fantastic!!

  • @tashaagarwal419
    @tashaagarwal419 7 років тому +1

    Never came across a better explanation than this one for dof and adjusted R2. Thanks a lot

  • @neptune1502
    @neptune1502 9 років тому +1

    Thank you very much. I never understood Degree of freedom but with the help of this video I got it. Thanks a lot. Please continue posting more videos.

  • @akash1001jan
    @akash1001jan 11 років тому +3

    Please upload remaining parts of this series. They are really great :)

  • @Sam-be4yy
    @Sam-be4yy 7 років тому +3

    You are such a great teacher. I wish my professors taught like you did...

  • @username-videos
    @username-videos 5 років тому +1

    An excellent explanation. Was using this to review an old stats class after someone asked me to explain to them what DF is. Realized I didn't have a simple explanation of what it actually is. Thanks!

  • @superhuegi
    @superhuegi 9 років тому +2

    Got an exam in two days and these videos have already really helped with the statistical part of it! Thank you very much!

    • @PunmasterSTP
      @PunmasterSTP 2 роки тому

      Hey, I know it's been years, but how did that exam go?

  • @wolfgangi
    @wolfgangi 5 років тому

    I swear to god you are the best statistics teacher that I've ever found. I love how you always explain things so intuitively!

  • @kanchithakkar
    @kanchithakkar Рік тому

    Thanks a ton. Amazing explanation!!! Your videos have helped me understand concepts way better than any other platform.

  • @tanishkagupta3043
    @tanishkagupta3043 2 роки тому

    thank you so much, you are the best teacher in youtube i have ever seen in stats

  • @TonyTongWA
    @TonyTongWA 7 років тому +3

    Best explanation of degrees of freedom I've found so far!
    :)

  • @trangpham4176
    @trangpham4176 5 років тому +1

    i sort of understand degree of freedom from all the reading but could not re-explain it by myself in a simple and easier to understand term! this is perfect thank you so much :)

  • @pupface
    @pupface Рік тому

    I have read about every explanation of df and this is the only one that's made it clear!

  • @PunmasterSTP
    @PunmasterSTP 2 роки тому

    Degrees of freedom? More like "Dang, these are some of the best of 'em!" Your videos are some of the best on UA-cam, and I really hope that you keep them coming.

  • @TimOost
    @TimOost 11 років тому +1

    Very clear explanation on degrees of freedom and its effect on R squared, thank you

  • @hemantdas9546
    @hemantdas9546 4 роки тому

    Best video on degree of freedom. Very intuitive. Love it ❤️. Thanks for making things so simple.

  • @melvingeorge2008
    @melvingeorge2008 10 років тому +4

    Fantastic explanation... Please upload more of ur videos.. ur really a good teacher

  • @ishaiperelman3137
    @ishaiperelman3137 10 років тому +1

    Very good video. Clear, assertive and very well presented. Thumb up 103 is mine.

  • @amitbasu8880
    @amitbasu8880 7 років тому +1

    Excellent. Helped me to understand degrees of freedom and R2 which I was struggling with so long

  • @xxelurraxx232
    @xxelurraxx232 Рік тому

    Thank you for this. Was looking online for intuition and only got "n - k - 1" with no explanation. This makes complete sense.

  • @sheebee8398
    @sheebee8398 7 років тому

    Thank you very much! You have shown how powerful and important diverse approaches and perspectives are to growing community knowledge. After all, why were we given a diverse approach in the first place? You were given yours to help us understand and grow.

  • @hollietripp7672
    @hollietripp7672 9 років тому +1

    Please post more! Your videos are so helpful!

  • @innovation2440
    @innovation2440 7 років тому

    Thank you very much..Finally after a lot of searching and looking into videos, it is from here that I was able to clearly understand the concept of Degrees of Freedom.

  • @rescuemay
    @rescuemay 8 років тому +1

    Great explanation Justin! Really helped to refresh my memory about these ideas.

  • @BNJ53
    @BNJ53 7 років тому

    Studying for the CFA and your videos are so helpful! Thank you!

  • @hgocers1230z
    @hgocers1230z Рік тому

    The most succint explanation of df I have ever seen. Thank you!

  • @fatemehbabakhani9027
    @fatemehbabakhani9027 8 років тому +1

    Thanks so much! It was the best video, I've ever seen about the Degree of Freedom.

  • @ChewingGum113
    @ChewingGum113 10 років тому +2

    Thank you so much for these videos, they are very helpful. Please, please make the 3rd, 4th and 5th video about this topic too! I'm looking forward to them. :)

  • @sibghatullahkhan1498
    @sibghatullahkhan1498 8 років тому +1

    Very Informative Sir. you have great command over regression analysis

  • @ashishmohan137
    @ashishmohan137 4 роки тому

    this video gives you an understanding of concepts on three levels:Intuitive,Graphical ,mathematical

  • @AZacLife
    @AZacLife 2 роки тому

    I rarely comment, but this was actually very useful. You have managed to make me understand what df means. Thank you!

  • @apankack12
    @apankack12 3 роки тому

    A fantastic video. Thank you for enlightening such a confusing topic sir. You have my respect!

  • @winifreddibie3200
    @winifreddibie3200 2 роки тому

    I’m truly grateful for your videos

  • @ukkamunda
    @ukkamunda 10 років тому

    Justin, I was struggling with REAL concepts of SLR, your explanation along with examples really clarified all my queries and assumptions. Now I'm eagerly waiting for Regression III :) ... Thanks once again !!

  • @aarondecker7042
    @aarondecker7042 10 років тому

    One of the best explanations of DoF and Rsq-Adj I have seen. Thanks.

  • @lindaren9467
    @lindaren9467 4 роки тому

    Great videos that give me so much more clarity for many problems. Thanks for the great work!

  • @monasoltani5928
    @monasoltani5928 4 роки тому

    Your explanation is way beyond awesome.... Thanks

  • @fortunengoma9244
    @fortunengoma9244 2 роки тому +1

    you know your stuff man keep it up God bless you sir

  • @rajagopal2124
    @rajagopal2124 10 років тому +1

    Very beautifully explained...!!! Thanks a lot sir...please continue good work.

  • @stephaniemeade2960
    @stephaniemeade2960 5 років тому

    YOU MADE IT FLAWLESSLY MAKE SENSE. THANK YOUUUUUUUUUUU

  • @harshsanghvi6948
    @harshsanghvi6948 11 років тому +1

    very well explained..hope to see the next 3 videos soon!!

  • @shivamkpathak3371
    @shivamkpathak3371 Рік тому +1

    Just wow, amazing presentation, thank you so much

  • @drsanthoshsamuel9717
    @drsanthoshsamuel9717 4 роки тому +1

    Prof. Alex Excellent & Brilliant

  • @cogcog312
    @cogcog312 3 роки тому +1

    This is your second video I am watching and both have given simple and clear explanations to the topics treated. Excellent and thank you. I am learning data science and would ask if you could delve into all the statistics that support the different data science models. Maybe you have, I am not sure.

    • @PunmasterSTP
      @PunmasterSTP 2 роки тому

      How have your studies been going?

  • @xjulice
    @xjulice 10 років тому +1

    Waiting for moore! :) this was really fun to watch especially because of the simple visualization !

  • @shramisharma7064
    @shramisharma7064 10 років тому

    This is great. Waiting for the remaining ones. With a non stats background, i dont think i would have been able to understand this in a better way than this. GREAAT WORK. THANKS:)

  • @byhtan001
    @byhtan001 8 років тому +3

    THANK YOU SO MUCH, gosh statistics and econometrics is so tough :'(

  • @soonerbjj
    @soonerbjj 5 років тому +1

    Best explanation of df that I've seen. Thank you.

  • @wl9318
    @wl9318 3 роки тому

    Thank you so much. Tears on my face and can’t stop

  • @suchitrakulkarni4559
    @suchitrakulkarni4559 3 роки тому

    what a beautiful explanation on degrees of freedom!!!! Thank you!!!!

  • @samahwanas4165
    @samahwanas4165 Рік тому

    Thanks for your simplicity in explaining!

  • @jayantarianster
    @jayantarianster 3 роки тому +1

    15 minutes of this video taught so much more than hours of university classes

  • @anujlahoty8022
    @anujlahoty8022 Рік тому

    Maths is indeeed beautiful and your explanation drives the point home.

  • @vilopiforte
    @vilopiforte 11 років тому +1

    Hoped to see the next one too :( it's so good and clear. Thanks for your effort

  • @annabrenner5995
    @annabrenner5995 Рік тому

    THANK YOU SO MUCH for noting and acknowledging that the SSE is actual the sum of residuals squared, and SSR is the sum of the explained error squared. Every other stats teacher who fails to explain this should be fired for torturing their students.

  • @avazyusibov5342
    @avazyusibov5342 4 роки тому

    thank you very much for a straightforward explanation of econometrics.

  • @atulsharma8773
    @atulsharma8773 8 років тому +1

    BRILLIANT !!! BEST I HEARD FORM ANYONE !!

  • @ashwiiniinandesshwar5928
    @ashwiiniinandesshwar5928 9 років тому +9

    Amazing and very helpful.

  • @taladiv3415
    @taladiv3415 2 роки тому

    It is truly unfortunate that we must rely on talented philanthropists like Zed to providee us with the very thing we should have received for paying so much money to the university or college!
    Bless Zed for his contribution to the knowledge of the masses out there!

  • @gutestederwelt
    @gutestederwelt 7 років тому +1

    Great explanation and visualization - thanks!

  • @Kingshuk91
    @Kingshuk91 10 років тому +1

    Brilliant video.. Would appreciate if you could come out with a view advanced topics on regression too!

  • @johnthemain
    @johnthemain 9 років тому

    Great video, please finish the series!

  • @evaita1
    @evaita1 9 років тому +3

    Can we have part III, this is really helpful!

  • @rhomielijah5055
    @rhomielijah5055 7 років тому +2

    This is genius stuff. Thanks Zed!!

  • @karannchew2534
    @karannchew2534 3 роки тому

    5:58 The 3rd point allows the model to differ from the 2 two points -> one degree of freedom.
    Add 4th points -> 2 degree of freedom -> give the model more power to estimate

  • @ahawendy6359
    @ahawendy6359 5 років тому +1

    Wish I found you earlier! You're a legend!

  • @HazieRox
    @HazieRox 11 років тому +4

    Thanks! Please upload the rest of your series!

    • @zedstatistics
      @zedstatistics  10 років тому +7

      Part III due in a week or two! My mission this year is to finish these off :)

    • @amandamann4059
      @amandamann4059 10 років тому +2

      zedstatistics Would love to see part lll. Your videos are the best I've found yet. Thank you!

  • @mohammaddakhakhni4097
    @mohammaddakhakhni4097 9 років тому +1

    keep up the good work dude thanks it was useful a lot

  • @richardgrifon395
    @richardgrifon395 9 років тому +15

    Multiple regression please...

  • @udayantat2747
    @udayantat2747 6 років тому +1

    great video. specially the degrees of freedom.. helped a lot

  • @aliputhukkidi8166
    @aliputhukkidi8166 8 років тому

    What a nice explanation Zed... you should probably conider starting a "Zed Talks"

  • @kksforexnews5612
    @kksforexnews5612 9 років тому

    Excellent video... Plz do the other videos as well....

  • @veenalasrado6364
    @veenalasrado6364 2 роки тому

    Thank you very much for explaining it so well with an example.

  • @akhtarali3562
    @akhtarali3562 8 років тому +1

    hi bro,
    your both videos are awesome. i used to hate this subject but after watching your videos i feels like econometric is easiest subject. it would be great help if you could share the link of your other three videos.
    thanks.....

  • @stafma31
    @stafma31 10 років тому +1

    Thank you SO MUCH, learning so much here than in my class!

    • @PunmasterSTP
      @PunmasterSTP 2 роки тому

      Hey I know this was years ago, but I just came across your comment and was curious. How did the rest of your class go, and how have things been going since then?

  • @MrHugosky1
    @MrHugosky1 9 років тому

    I loved your lesson. Thank you very much in deed!
    I am looking forward to watching the following 3 sequel of this video.

  • @hamiltonfarias2444
    @hamiltonfarias2444 5 років тому

    Finally understand degrees of freedom. Thank you!

  • @321ananth
    @321ananth 10 років тому

    Excellent explanation of DOF!

  • @ajaygoyal436
    @ajaygoyal436 4 роки тому

    very informative n simply explained. thanks a ton

  • @Unused50
    @Unused50 6 років тому

    Thanks! This is the only place I actually understood df.

  • @ajayakabecks
    @ajayakabecks 4 роки тому +1

    Thank you for explaining the concepts in such a simple way.It was really informative and easy to understand.
    Could you explain how decrease in DF leads in increasing R2.

    • @zedstatistics
      @zedstatistics  4 роки тому +2

      Imagine there are three fireflies hovering in your bedroom. You take out a big sheet of rigid cardboard.
      If you can only hold the cardboard horizontally, you will probably only touch one of the fireflies.
      If you were allowed to hold the cardboard at any angle, you could touch ALL THREE fireflies no matter where they are in the room.
      Consider now that you had 10 fireflies instead of 3. Allowing the cardboard to be held at any angle still improves the ability to get closer to all the fireflies.
      This analogy shows that when DF decreases (in other words, when you have more dimensions/variables to work with for a given number of observations), you will ALWAYS get closer to perfectly identifying the observations.

    • @ajayakabecks
      @ajayakabecks 4 роки тому +1

      Thank you for the detailed explanation.