Numerical on PCA | MACHINE LEARNING TUTORIALS

[@Lastmomenttuitions]

Learn Python + ML and Make yourself future Ready :forms.gle/wHyszvGZeUpWQRVM9 Last moment tuitions are providing [Python + Machine learning] courses which are beginner-friendly and will help you to build your career in Machine learning, Data Science and Web Development

[@redhunter408]

Appreciate the effort! Nice work!

[@Lastmomenttuitions]

Thanks

[@asianroster4608]

Good video. Keep it up fast and to the point 😊

[@rohanjain8224]

Thanks brother for this wonderful and helpful video 🙂

[@akularevathi491]

Consider two dimensional data set (1,2)(2,4)(3,6).apply pca algorithm and determine Principle components??

[@AhmedAli-ky6jt]

It's very helpful to me thank you so much 😊

[@darkvenomdarkvenom2468]

People who are not able to find a11 and a12 === a12=1.2863×a1---put this value in a11square +a12square=1 We get a11square +(1.2863×a11)square=1 Now take a11 common outside and square the value of 1.2863 we get a11square(1+1.5620)=1 a11square×2.562=1 a11square=1÷2.562

[@VlogWithBrajwasi]

thankyou bhai

[@shivammaurya8694]

Thanks.. Had a problem earlier but now cleared

[@poonam6103]

Thank you so much. It cleared my doubt.

[@nikhilpawar9910]

Can you pls explain how to get a12

[@PranavModi1]

Thank you!

[@aniruddhapimple7331]

Hey there

[@mominashaikh267]

Thanks a lot bro✌

[@sagarraina1997]

lamda will have -signs

[@raaghavsharma378]

Bhai smjh nhi aya sumer bhai ko bolo bnaneko video wo mast smjhatabh

[@pareenharsora3303]

lecturer teaching is speed is too fast. plz make it in a understandable way.

[@Abhishekpandey-dl7me]

jabarjast bhai. thanks

[@amitkumar-py9xs]

Satellite image par kya impact hoga

[@Premsaha24]

nice explanation

[@GouravPanchal]

how you calculate covariance (X, Y) = 2.083

[@GamingEver07]

same problem

[@anilpariyar19]

Σ(AB)/n-1

[@mohammadibtehaj8984]

@@anilpariyar19 why we are not squaring AB ?

[@skilz9525]

@@mohammadibtehaj8984 square hai hi nhi udr ...... isne galat likha hai

[@NikaljeHarshal]

@@mohammadibtehaj8984 that is because cov(x, y) will have (Xi-Mean of X) and (Yi- Mean of Y). If it were cov(x, x) it’d have (Xi - Mean if X)(Xi - Mean of X) Likewise for Y as well. So diff scenarios of variable will get you diff types of operations

[@udbhavsinghal9273]

Bhai JIIT meh aise karne pe 0 diya tha. Sir ne bola kahan se lekar aaye ho ise.

[@krishnachoudhari3669]

Bhot fad padhta hai bhai.. city? Class lagani hai maine

[@Lastmomenttuitions]

Thanks alot Bhai we are from mumbai

[@VlogWithBrajwasi]

thankyou bhai

[@sumitgupta3786]

Aare bhai main concept toh bata A11 ka aur A21 ka value kyse aaya?? Plzz rply bro iys urgent....

[@omkarvaiti2721]

Ha wahi bro Kuch samja nahi thik se

[@amoghgokhale2967]

Equation 1 and 2 mein se koi bhi ek equation uthao. a11 ko ek side mein leke aao. (a11)^2 + (a12)^2 = 1 -------------> iss equation mein se upar wale equation mein a11 ko sqrt(1-(a12)^2) se substitute karo. This will give you the value of a12. a12 ki value ko kisi bhi equation mein substitute karo and a11 ki value nikalo. Done! Similarly for a21 and a22. Hope ki samajh aaya hoga

[@Sid19s]

@@amoghgokhale2967 nhi

[@pareenharsora3303]

sumer sir plz u try to teach this sum in detailed calculations.

[@UpdeshSrivastava94]

Great👍🏻

[@RakeshYadav-rj7be]

cov(x,y) kaise find kiya mujhe nhi samja wo pls reply anyone

[@topaz2825]

Cov(x,y) = (Xi - Xmean)*(Yi - Ymean) / N

[@wishthecakehere98]

Bhai calculator pr kaisr karte h voh dalo na

[@dpundir]

theory bhi bta do plz..

[@himanshunikam6251]

Easy ha but Kitna time laga ga ya exam ma solve karna ma😭

[@zebi_khan_niazi]

there is no square in covariance formula

[@EgyptianFiferMods]

Thanks

[@amitkumar-py9xs]

Pca hota kya hai.explain karein

[@ankit_khachane]

Bhai Ye sum pe @11.51 pe jo bat kahi he vo sahi he na

[@MuhammadBilal-zk4gn]

Sir or signed ka farak ho to

[@spandanbasu5653]

Agar a11 = a22 and a12 = a21 hua toh principal components orthogonal kaise hoga?

[@bodybro9195]

vahi to ek value negetive of the other honi chahiye thi

[@prekshaswami3142]

@@bodybro9195 a21 is negative of a12

[@manishjoshi9737]

3x3 matrix m kase krege

[@kkt392]

Thanks sir

[@babumoshay8117]

Badiya bro

[@rishikakumar4006]

how is 2.083*2083 = 0.2202 ???????

[@khageshsahu554]

kya 12th ke baad pca kiya ja sakta hai

[@dhanashripatil2792]

How to calculate a11 and a12

[@rabihashaheen3283]

same i am so confused got my exam tomorrow this part is missing for how to we put the value od a11 in eq 1 etc

[@sajid.05]

Bhai trY to make it understandable for others .. U calculation are so fast we need to understand it do it slow and say this comes after calculating this .. u do by ur self it become difficult for us to understand

[@ashokbasnet798]

this solution is wrong. for equation to be perpendicular (x, y) = (-y, x). I think you will take lambda 1 eigen value and after finding eigen vector just use the relation mentioned.

[@shuyaebkhan1603]

Exam me aaya to drop kar denge Bhai 🙄

[@shubhaliharode9292]

a11 a12 ki value kesi nikali he plz batao

[@sujatsir1937]

may i help you.

[@amoghgokhale2967]

Equation 1 and 2 mein se koi bhi ek equation uthao. a11 ko ek side mein leke aao. (a11)^2 + (a12)^2 = 1 -------------> iss equation mein se upar wale equation mein a11 ko sqrt(1-(a12)^2) se substitute karo. This will give you the value of a12. a12 ki value ko kisi bhi equation mein substitute karo and a11 ki value nikalo. Done! Similarly for a21 and a22. Hope ki samajh aaya hoga

[@Amit-jp7vt]

@@amoghgokhale2967 thanks

[@nikhilpawar9910]

​@@amoghgokhale29670.65 aarha hai calc Mai aur ismai 0.61 aaya ye kaisa aaya a12 ka

[@sword013]

a11 and a12 dono positive rahenge to equation satisfy nahi hota... #2nd eig vector Khud ka concept clear kar phir padha :/ galat kyu padha raha he

[@mayureshkhalane8827]

Bhaiii sahi answer aata hai !

[@sword013]

@@mayureshkhalane8827 are bhai ek-do values galat atay coz he considered both a11 and a12 positive... Ek negative hona chahiye :) I just confirmed it

[@pineappledaily6324]

Bhai sahi nahi hai kya ye

[@SonamSingh-oo9pr]

dikhai ni de rha h theek se

[@jyoti5030]

Also make a tutorial on LDA with example nd theory

[@jyoti5030]

Last moment tuitions thanks

[@nikhilpawar9910]

Can u pls explain how to get a12

[@wishthecakehere98]

Or half half mat samajo atleast per step ka ek chiz samjaho app skip kar rhe ho

[@mitulchoudhary2691]

Bhai cov(x,y) kese aya...?

[@MrGyaancho]

AB wale column ki saari value ko sum karke divide kar do (n-1) se simple.

[@rishabhgaur4552]

NIIT University students...... attendance lagao idhar!!!!!!!!!!!

[@sanz1996_]

3

[@shivamarora1078]

my teacher sucks , thank you

[@susheelyadav6143]

Kya h yar ye aise kon padhata h. Khud sol e kar rha h padha rha h.

[@prao1313]

ya to tumhe lagi hu hai... ya bus pakadna.

[@ranjith4912]

lit

[@abhishekmidha233]

bkwaas

[@NishantKumar-bt2zi]

Bhai pehle co-variance matrix toh shi se bana le

[@Thabadthabad]

Bhai itni low level understanding, na data nikala, na transformation kia, na plotting. Ye principal component nikal kar fayeda kya jab usage nahi batai toh. Uni wale bhi theory puchte sirf application based kuch nahi puchte chutiye

[@arvindsingh-pz8ix]

Bhai mere mujhe "DIGITAL IMAGE PROCESSING" ke notes bhej do mere e-mail per" [e-mail]" . Abki jaroor bhejna.....