Dab tsi yog txhais los ntawm cov ntaub ntawv multivariate?
Dab tsi yog txhais los ntawm cov ntaub ntawv multivariate?

Video: Dab tsi yog txhais los ntawm cov ntaub ntawv multivariate?

Video: Dab tsi yog txhais los ntawm cov ntaub ntawv multivariate?
Video: Qhia txhais 50 zaj npau suav tias yog dab tsi part 3 15 Sep 2019 2024, Kaum ib hlis
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Multivariate cov ntaub ntawv yog cov cov ntaub ntawv hauv qhov twg tsom xam yog nyob ntawm ntau tshaj ob qhov sib txawv ntawm ib qho kev soj ntsuam. Feem ntau multivariate cov ntaub ntawv yog siv rau kev piav qhia.

Ntawm no, dab tsi yog qhov multivariate dataset?

A cov ntaub ntawv teev muaj ob lossis ntau tshaj ob qhov sib txawv yog hu ua multivariate dataset . Rau eg. A dataset ntawm qhov siab ntawm cov tub ntxhais kawm yuav raug hu ua cov ntaub ntawv univariate ('qhov siab ntawm cov tub ntxhais kawm' yog qhov sib txawv). Ib yam li ntawd, a dataset nrog ntau tshaj ob qhov sib txawv yuav raug hu Multivariate cov ntaub ntawv.

Ib sab saum toj no, dab tsi yog qhov piv txwv ntawm kev txheeb xyuas ntau yam? Piv txwv ntawm multivariate regression Piv txwv 1. Ib tus kws tshawb fawb tau sau cov ntaub ntawv ntawm peb qhov kev hloov pauv ntawm kev puas siab puas ntsws, plaub qhov kev hloov pauv kev kawm (cov qhab nia xeem tus qauv), thiab hom kev kawm uas tus tub ntxhais kawm nyob rau hauv 600 cov tub ntxhais kawm theem siab. Ib tug kws kho mob tau sau cov ntaub ntawv ntawm cov roj cholesterol, ntshav siab, thiab qhov hnyav.

Ntxiv rau qhov no, txhais li cas los ntawm kev txheeb xyuas ntau yam?

Txhais : Multivariate Analysis Multivariate Analysis siv cov txheej txheem txheeb cais uas tso cai rau peb tsom mus rau thiab tsom xam ntau tshaj 2 qhov kev hloov pauv hauv ib zaug. Nws yog ib qho kev sau los ntawm txoj kev siv thaum ntau qhov kev ntsuas tau ua rau ntawm ib qho khoom hauv cov qauv sib txawv.

Dab tsi yog univariate thiab multivariate cov ntaub ntawv?

Univariate thiab multivariate sawv cev rau ob txoj hauv kev rau kev txheeb cais tsom xam . Univariate koom nrog tsom xam ntawm ib qho txawv txav thaum kev tsom xam ntau yam tshuaj xyuas ob lossis ntau qhov sib txawv. Feem ntau kev tsom xam ntau yam suav nrog ib qho kev hloov pauv thiab ntau yam hloov pauv ywj pheej.

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