Curve fitting method || least square method

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  • Опубліковано 3 кві 2020
  • This is the third type video about to he method of curve fitting when equation contains exponential terms.
    ERROR RECTIFIED:
    • Curve Fitting Least Sq...
    I AM EXTREMELY SORRY FOR THE INCONVENIENCES.
    In curve fitting method, the natural logarithm (ln) is often used when fitting an exponential equation of the form y = ae^(bx) to a set of data points.
    The reason for using the natural logarithm is because it can transform an exponential equation into a linear equation. Taking the natural logarithm of both sides of the equation, we get:
    ln(y) = ln(a) + bx
    Now, if we plot ln(y) against x, we get a straight line with slope b and y-intercept ln(a). We can then use linear regression techniques to find the best-fit line and determine the values of a and b for the original exponential equation.
    Using the natural logarithm to transform an exponential equation into a linear equation is a common technique in curve fitting, and can be used with other types of functions as well.
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КОМЕНТАРІ • 157

  • @epicclips5512
    @epicclips5512 Рік тому +21

    Here, the equation is,
    B= loge *b, so the value b will be as,
    b= B/(loge), simple math not antilog(B)

  • @UCESNEHINSINGH
    @UCESNEHINSINGH 2 роки тому +8

    Thank you for providing such an easy explanation on this topic

  • @manideep6704
    @manideep6704 2 роки тому +64

    I just Skipped This video and TF 🤣🤣 Same Question aaya Exam mei😢😢

  • @beyza888
    @beyza888 Рік тому +2

    hello, what should I do if i have a function like that: Ax(e^(-Bx)) thanks for your respond

  • @arjunsinha8359
    @arjunsinha8359 Рік тому +1

    Curve fitting mein orthogonal polynomials aur least squares method ka kya role hota hai?

  • @kayecilynmalabanan2612
    @kayecilynmalabanan2612 3 роки тому +5

    may I know if this example of yours is align in nonlinear regression?

  • @aryaashok2136
    @aryaashok2136 Рік тому

    Useful vdo🥰

  • @praveenbhukya5315
    @praveenbhukya5315 2 роки тому

    Super explanation bro

  • @chilukuritharunkumar3305
    @chilukuritharunkumar3305 2 роки тому

    Can you find the root mean square for this

  • @kethavathpraveenrathod4420
    @kethavathpraveenrathod4420 3 роки тому

    Keep it up bro

  • @tanjilajahan3944
    @tanjilajahan3944 2 роки тому +9

    I have a question..
    For the last equation there was b×loge so when equating you solve it as antilog(..) but what about the e?????

    • @Civillearningonline
      @Civillearningonline  2 роки тому +1

      e is just a representation, loge transform to antilog.

    • @Civillearningonline
      @Civillearningonline  2 роки тому +1

      e represents natural log. And another is ln.

    • @anantatikar
      @anantatikar Рік тому

      Same question

    • @lastfight857
      @lastfight857 Рік тому +2

      He takes the wrong log in calculator. ln in calculator is actually log and its antilog is e^ .... but the log he takes was actually log base10, i.e log10( .

    • @GetoPlayzZzYT
      @GetoPlayzZzYT 5 місяців тому

      ​@@lastfight857yeah... 💀

  • @praveenyellutla3970
    @praveenyellutla3970 5 місяців тому

    Thank you❤

  • @phatikthapamagar5242
    @phatikthapamagar5242 Рік тому

    here Y is equal to logy , why didn't you changed that for calculate the equation of y?

  • @hemraj9739
    @hemraj9739 3 місяці тому

    Why you dont use natural log ??

  • @udaykiran496
    @udaykiran496 2 роки тому

    Thank you bro

  • @ankitabehera5754
    @ankitabehera5754 2 роки тому

    Thank u😊

  • @Naz_123naz
    @Naz_123naz 8 місяців тому +3

    You are taking logY then Y don't you take log x ?

  • @AkhtarAli-bx3fc
    @AkhtarAli-bx3fc Рік тому +1

    Loge=ln so you have take anti ln instead of antilog in finding the value of b

  • @ambikumar5283
    @ambikumar5283 2 роки тому

    Good job

  • @chaitanyaprudhvi
    @chaitanyaprudhvi 3 роки тому +7

    Sir pls explain using Taylor's series method solve dy/dx= x^2+y^2 for x=0.4 given that y=0 when x=0

  • @harshaliaher7707
    @harshaliaher7707 Рік тому +2

    It's helpful

  • @eee250ramsuhavmandal8
    @eee250ramsuhavmandal8 2 роки тому

    Thank you sir

  • @vedhapriya-ky5dv
    @vedhapriya-ky5dv 7 місяців тому

    Thankyou sir🥰

  • @himanshutripathi7428
    @himanshutripathi7428 3 роки тому

    bdia bhai....!!

  • @EERavikumar
    @EERavikumar 6 місяців тому

    Tqs bro❤

  • @shivasmart967
    @shivasmart967 2 роки тому +1

    tq bro

  • @shree_editing
    @shree_editing Рік тому +1

    8:27 agar 3 equation hue to Casio me kaise daale plz replay

  • @varmaswaero7823
    @varmaswaero7823 3 роки тому +5

    Thank you brother osm class iam getting confident to write exam

  • @annamariaiaia1563
    @annamariaiaia1563 2 роки тому

    good job boy

  • @harshanchinthala5618
    @harshanchinthala5618 2 роки тому +2

    My lecturer explained using Natural Logarithm and got different answer which should I follow now

    • @Civillearningonline
      @Civillearningonline  2 роки тому +2

      You cannot ise natural log in this method. Do as per this video.

    • @ghatakchess
      @ghatakchess 2 роки тому +1

      @@Civillearningonline only in this question we can't use natural log or we have not to use in every question ??

  • @vanshpathania9077
    @vanshpathania9077 Місяць тому

    Thanks

  • @explorewithmesantosh
    @explorewithmesantosh 3 місяці тому +1

    dont we use natural log ln(10) to find logy?

  • @mahatshan29
    @mahatshan29 3 роки тому +9

    Thank you for good explanation, Just I’m asking how to calculate the parameters using same method and same data for double exponential fit for this formula,
    Y = A.e^ax+B.e^bx
    For the previous formal we need to calculate A,B,a,b then Y
    Could you please provide some explanation of this one, I will appreciate

    • @mahatshan29
      @mahatshan29 3 роки тому

      I need to use same method you showed here

    • @Civillearningonline
      @Civillearningonline  3 роки тому +1

      Ok bro i will let you know soon.

    • @mahatshan29
      @mahatshan29 3 роки тому

      Civil learning online Thank you for your response

  • @Itsmemanasa48
    @Itsmemanasa48 2 роки тому +5

    Tqs for solving the problem nd excellent explanation 🤩🤩

  • @suryapraveen8917
    @suryapraveen8917 3 роки тому

    The mode u used on calculator , if i press same not getting

  • @adriansmith9898
    @adriansmith9898 3 роки тому

    Can this be done by using linear reressiin method??? What will be the difference

    • @Civillearningonline
      @Civillearningonline  3 роки тому

      Hello dear,
      Here we have converted the exponential function into linear equation and further the step is similar to what we do in case of linear equation.
      That's the main thing to take into consideration.
      Do check out my video on linear equation link in description. And i am quite sure that you are going to love it. And see the difference.

    • @adriansmith9898
      @adriansmith9898 3 роки тому

      @@Civillearningonline i have seen the same exact question done by regression directly calculating a and b... Can we do any of them if given in exam

    • @Civillearningonline
      @Civillearningonline  3 роки тому

      @@adriansmith9898 yes you can. Same question and be solved by other method also. Go for it.

    • @adriansmith9898
      @adriansmith9898 3 роки тому

      @@Civillearningonline b=(n£xy-£x*£y)/n£x^2-(£x)^2
      A=(£y-b£x)/n....
      Can we use this method sir... Please reply👍👍👍

    • @Civillearningonline
      @Civillearningonline  3 роки тому

      Yes

  • @letstryit1480
    @letstryit1480 3 роки тому +5

    8:05

  • @kchandrasekhar9164
    @kchandrasekhar9164 2 роки тому

    In log consists base e so use In button for logy=Y

  • @tsehayenegash8394
    @tsehayenegash8394 Рік тому

    how to calculate the error and trend by using this data?

    • @Civillearningonline
      @Civillearningonline  Рік тому +1

      Ok. I will. Help you.

    • @tsehayenegash8394
      @tsehayenegash8394 Рік тому

      @@Civillearningonline I appreciate your humblness. if you can please upload a video including error and trend in this week. Thank you. I need your email

  • @nagrajraninga5671
    @nagrajraninga5671 2 роки тому

    👌🏻👏🏻👏🏻

  • @maheshrajderangula2030
    @maheshrajderangula2030 2 роки тому

    Super

  • @user-il9wz1qr1p
    @user-il9wz1qr1p 7 місяців тому

    Thk sir 🤍

  • @varungudipudi
    @varungudipudi 2 роки тому

    Sir then what we should do when even no. series is given?

    • @Civillearningonline
      @Civillearningonline  2 роки тому

      Process is same. And you will have two options in case of even number. You can proceed taking any of two

    • @varungudipudi
      @varungudipudi 2 роки тому

      @@Civillearningonline once explain sir please within few days i have exams

    • @Civillearningonline
      @Civillearningonline  2 роки тому

      Ok . I will make you clear with an example or provide you an example solution on you email.

    • @varungudipudi
      @varungudipudi 2 роки тому

      @@Civillearningonline ok sir thank you🙏🙏

    • @varungudipudi
      @varungudipudi 2 роки тому

      @@Civillearningonline shall i give my mail id?

  • @motivationalhub2056
    @motivationalhub2056 2 роки тому

    thanks alot sir but loge b=B
    then b is equal to e^(B) i think sir??????

    • @Civillearningonline
      @Civillearningonline  2 роки тому

      Yes dear. You are right. And due to this confusion I had added a new example on this Method. Link is in description.

  • @shashankbhargava8242
    @shashankbhargava8242 Рік тому

    can we use ln

  • @sabinrai4442
    @sabinrai4442 2 роки тому +2

    Ln10 is equal to 2.303

  • @fahadalzubair3045
    @fahadalzubair3045 9 місяців тому

    nice

  • @luckytheracer4557
    @luckytheracer4557 3 роки тому

    We have ta take ln insted of log

    • @Civillearningonline
      @Civillearningonline  3 роки тому

      It's clearly shown while getting the final answer through calculator.

  • @nailaallahverdiyeva8926
    @nailaallahverdiyeva8926 8 місяців тому +1

    Value of B will not be changed! B=b

  • @learneasy1442
    @learneasy1442 3 роки тому

    A and B ka ki value kaise nikali sir

    • @Civillearningonline
      @Civillearningonline  3 роки тому

      Either solve 2 equations manually by elimination method or use calculator to slove them. You can watch my 2nd video on same method where I have solved the equation using calculator. Link is pinned in comment section. Havd a look.

  • @hemanthsai7024
    @hemanthsai7024 3 роки тому

    Is curve fiting is overfitting sir?

  • @Tareq--ri6qe
    @Tareq--ri6qe Рік тому

    ❣️❣️❣️❣️

  • @sanjitde6018
    @sanjitde6018 3 роки тому +3

    Calculation was wrong, but explanation is fine ❤️

    • @Civillearningonline
      @Civillearningonline  3 роки тому +1

      Check out the link pinned in the comment section. It is going to be helpful to you.

    • @sagarpunia9405
      @sagarpunia9405 2 роки тому +1

      You are doing wrong calculation .there is mistake you have done is that once you take base e of log and then base 10 ...

  • @stunnervenkatesh6565
    @stunnervenkatesh6565 3 роки тому

    Explain clear ga ledhu bro

  • @CreativeVibes365
    @CreativeVibes365 4 місяці тому

    Are u sure the answer is correct

  • @harshanchinthala5618
    @harshanchinthala5618 3 роки тому

    We don't have that option in our modern calculators 😶😶

    • @Civillearningonline
      @Civillearningonline  3 роки тому +1

      You can solve your equation manually or change your calculator.

    • @vanshikamehrotra8420
      @vanshikamehrotra8420 2 роки тому +1

      Press mode three times than press 1 you will get the same option in new calc

    • @harshanchinthala5618
      @harshanchinthala5618 2 роки тому +1

      @@vanshikamehrotra8420 hey thanks for the reply
      Literally after 9 months 😁

  • @prabhatsharma2052
    @prabhatsharma2052 2 роки тому

    You are nepali n bro?

  • @Civillearningonline
    @Civillearningonline  3 роки тому +8

    ERROR RECTIFIED:
    ua-cam.com/video/bZU2wzJRGtU/v-deo.html
    Visit this link to get the correct solution.
    And i would like to thanks you all who traced my mistake.
    Curve fitting method in Hindi:
    ua-cam.com/video/D8U0doiP0-o/v-deo.html
    Take care guys .
    BEST OF LUCK FOR YOUR EXAM.

  • @muhammadanaswaqar9051
    @muhammadanaswaqar9051 Рік тому

    the value of b is wrong it should be 0.0590

  • @ravikiransakepujari4130
    @ravikiransakepujari4130 3 роки тому +3

    Sir b= b, not log b

    • @Civillearningonline
      @Civillearningonline  3 роки тому

      It's just for notation dear.
      Not matter in what way you solve a numerical but remember you should follow the correct step.
      And here in this video it is clearly explained so go for it.

  • @naveennavi6535
    @naveennavi6535 2 роки тому

    average e

  • @lastfight857
    @lastfight857 Рік тому

    the log you are taking is wrong, you need to take ln , not log.....
    ln means log
    and log means log10( in calculator

  • @bluesyace9564
    @bluesyace9564 Рік тому

    b=B/loge hunxa ni haina ra aru thikai xa thanks for the vid

  • @mr.z8378
    @mr.z8378 6 місяців тому

    Is 991 allowed in Exam

  • @kalagahemani4933
    @kalagahemani4933 2 роки тому

    Its (log e)b=B not log b=B

    • @Civillearningonline
      @Civillearningonline  2 роки тому

      Yes. You are right. I have corrected it in my new example link is in description.

  • @georgen9755
    @georgen9755 Рік тому

    questions leaked before the onset of examination ........

  • @universeexpansion9982
    @universeexpansion9982 Рік тому +1

    great bro

  • @syedkhajahussain6645
    @syedkhajahussain6645 3 роки тому +1

    It should be B=b.....it's wrong there🙁

  • @Vloggerpratibha14
    @Vloggerpratibha14 Рік тому

    Why are not speak Hindi

  • @abhinavyadav1417
    @abhinavyadav1417 Рік тому

    Sir apke here crow bahut hai

  • @vallepusiva1468
    @vallepusiva1468 Рік тому

    Hlo log y=loga+b how to came 🤬😡😠

  • @ANXIOUS_MRINANK
    @ANXIOUS_MRINANK Рік тому +1

    Bhai 991 kiyu use kiya dum hai toh vo equation khud solve krke dikha naaa bihari .....

  • @sisiraasok4636
    @sisiraasok4636 2 роки тому

    Thank you sir