Dab tsi yog qhov sib npaug rau ntau qhov regression?
Dab tsi yog qhov sib npaug rau ntau qhov regression?

Video: Dab tsi yog qhov sib npaug rau ntau qhov regression?

Video: Dab tsi yog qhov sib npaug rau ntau qhov regression?
Video: npauj kub xyooj deev tsi yuav tuag mam rov los nruav 2024, Kaum ib hlis
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Ntau Regression . Ntau yam kev thim rov qab feem ntau piav txog kev sib raug zoo ntawm ntau ywj siab los yog kwv yees variables thiab ib tug dependent los yog criterion variable. Cov ntau regression equation piav saum toj no siv daim ntawv hauv qab no: y = b1x kev1 + b2x kev2 + … + ib x kev + c.

Hauv qhov no, qhov piv txwv ntawm ntau qhov regression yog dab tsi?

Rau piv txwv , yog koj ua a ntau regression los sim kwv yees ntshav siab (qhov sib txawv ntawm qhov sib txawv) los ntawm kev hloov pauv ywj pheej xws li qhov siab, qhov hnyav, hnub nyoog, thiab teev sijhawm ntawm ib lub lim tiam, koj kuj tseem xav suav nrog kev sib deev ua ib qho ntawm koj qhov kev hloov pauv ywj pheej.

Ib tug kuj yuav nug, dab tsi yog siv ntau regression? Ntau yam kev thim rov qab yog ib tug extension ntawm yooj yim linear regression . Nws yog siv thaum peb xav kwv yees tus nqi ntawm qhov sib txawv raws li tus nqi ntawm ob lossis ntau dua lwm qhov sib txawv. Qhov sib txawv peb xav kwv yees yog hu ua qhov sib txawv ntawm qhov sib txawv (lossis qee zaum, qhov tshwm sim, lub hom phiaj lossis cov qauv sib txawv).

Ib yam li ntawd, nws raug nug, dab tsi yog tus qauv rau kev ntsuas kev rov qab?

Cov Linear Regression Equation Cov sib npaug muaj daim ntawv Y = a + bX, qhov twg Y yog qhov sib txawv ntawm qhov sib txawv (uas yog qhov sib txawv uas mus rau ntawm Y axis), X yog qhov sib txawv ntawm tus kheej (xws li nws yog plotted ntawm X axis), b yog txoj kab nqes. thiab a yog y-intercept.

Dab tsi yog txoj kab nqes hauv ntau qhov regression?

A regression coefficient nyob rau hauv ntau regression yog nqes hav ntawm kab tawm kev sib raug zoo ntawm tus txheej txheem kuj sib txawv thiab ib feem ntawm ib tug predator variable uas yog ywj siab ntawm tag nrho cov lwm yam kev twv ua ntej variables.

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