Video: Yuav ua li cas koj xam sinusoidal regression?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Sinusoidal Regression . Kho qhov tseem ceeb ntawm A, B, C, thiab D hauv qhov kev sib npaug y = A* kev txhaum (B(x-C)) + D los ua ib tug sinusoidal nkhaus haum ib pawg ntawm cov ntaub ntawv tsim tawm los ntawm randomly. Thaum koj muaj kev ua haujlwm zoo, nyem rau ntawm "Show Computed" kom pom cov suav regression kab. Siv "ctr-R" los tsim cov ntaub ntawv tshiab thiab sim dua.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog qhov logarithmic regression sib npaug?
Thaum ua logarithmic regression tsom xam, peb siv daim ntawv ntawm lub logarithmic ua haujlwm feem ntau siv rau ntawm cov duab siv hluav taws xob, y = a + b l n (x) displaystyle y = a + bmathrm{ln}left(x ight) y = a + bln(x). Rau qhov haujlwm no. Tag nrho cov input qhov tseem ceeb, x, yuav tsum ntau tshaj xoom.
Ib yam li ntawd, lub quadratic regression sib npaug rau cov ntaub ntawv teev yog dab tsi? A quadratic regression yog tus txheej txheem ntawm nrhiav tus kev sib npaug ntawm parabola uas zoo tshaj plaws haum a teeb ntawm cov ntaub ntawv . Raws li qhov tshwm sim, peb tau txais ib qho kev sib npaug ntawm daim ntawv: y=ax2+bx+c where a≠0. Txoj kev zoo tshaj los nrhiav qhov no kev sib npaug manually yog siv qhov tsawg tshaj plaws squares txoj kev.
Ib yam li ntawd ib tug yuav nug, dab tsi yog tus qauv polynomial regression?
Hauv kev txheeb cais, polynomial regression yog ib daim ntawv ntawm tsom xam regression nyob rau hauv uas qhov kev sib raug zoo ntawm tus ywj pheej variable x thiab dependent variable y yog qauv raws li ib tug nth degree polynomial hauv x. Vim li no, polynomial regression raug suav hais tias yog ib rooj plaub tshwj xeeb ntawm ntau yam linear regression.
Dab tsi yog sinusoidal graph?
A sinusoidal muaj nuj nqi yog ib tug muaj nuj nqi uas zoo li ib tug sine muaj nuj nqi nyob rau hauv lub siab hais tias lub functionality yuav ua tau los ntawm kev hloov, stretching los yog compressing lub sine muaj nuj nqi. Yog tias tsim nyog koj tuaj yeem xav tshuaj xyuas cov daim duab luv luv.
Pom zoo:
Yuav ua li cas koj ua sinusoidal regression ntawm lub laij lej?
VIDEO Ntawm no, yuav ua li cas koj xam sinusoidal regression? Sinusoidal Regression . Kho qhov tseem ceeb ntawm A, B, C, thiab D hauv qhov kev sib npaug y = A*sin(B(x-C))+D to make a sinusoidal nkhaus haum ib pawg ntawm randomly generated cov ntaub ntawv.
Yuav ua li cas koj xam nonlinear regression?
Yog tias koj tus qauv siv qhov sib npaug hauv daim ntawv Y = a0 + b1X1, nws yog tus qauv rov ua dua. Yog tsis yog, nws yog nonlinear. Y = f(X,β) + ε X = a vector of p predictors, β = vector of k parameters, f(-) = a know regression function, ε = lub sij hawm yuam kev
Yuav ua li cas koj xam lub sij hawm nws yuav siv sij hawm mus ncig teb chaws?
Kwv yees seb koj yuav mus sai npaum li cas ntawm koj qhov kev mus ncig. Tom qab ntawd, faib koj qhov kev ncua deb ntawm koj qhov nrawm. Qhov no yuav muab rau koj anestimation ntawm koj lub sijhawm mus ncig. Piv txwv li, yog tias koj mus ncig yog 240 mais thiab koj yuav tsav 40 mais ib teev, koj lub sijhawm yuav yog 240/40 = 6hours
Thaum twg koj yuav tsum siv correlation thiab thaum twg koj yuav tsum siv yooj yim linear regression?
Regression feem ntau yog siv los tsim cov qauv / qhov sib npaug los kwv yees cov lus teb tseem ceeb, Y, los ntawm cov txheej txheem kwv yees (X) sib txawv. Kev sib raug zoo feem ntau yog siv los ua kom sai thiab ua kom luv luv cov kev taw qhia thiab lub zog ntawm kev sib raug zoo ntawm ib pawg ntawm 2 lossis ntau tus lej sib txawv
Yuav ua li cas koj xam lub sij hawm nws yuav siv ib yam khoom los poob?
Ntsuas qhov deb ntawm qhov khoom yuav poob hauv ko taw nrog tus pas ntsuas lossis ntsuas daim kab xev. Faib qhov kev ncua deb los ntawm 16. Piv txwv li, yog tias cov khoom yuav poob 128 ko taw, faib 128 los ntawm 16 kom tau 8. Xam cov square root ntawm cov kauj ruam 2 los nrhiav lub sij hawm nws yuav siv cov khoom poob hauv vib nas this