Dab tsi yog qhov txawv ntawm nominal thiab ordinal?
Dab tsi yog qhov txawv ntawm nominal thiab ordinal?

Video: Dab tsi yog qhov txawv ntawm nominal thiab ordinal?

Video: Dab tsi yog qhov txawv ntawm nominal thiab ordinal?
Video: Tuag ua dab sawv los ua xyws 2/27/2020 2024, Kaum ib hlis
Anonim

Nominal cov ntaub ntawv yog ib pawg ntawm cov tsis-parametric sib txawv, thaum Ordinal cov ntaub ntawv yog ib pawg ntawm cov tsis-parametric txiav txim hloov pauv. Txawm hais tias, lawv yog ob qho tib si tsis yog qhov sib txawv, qhov txawv ntawm lawv yog qhov tseeb kev cai cov ntaub ntawv tau muab tso rau hauv qee yam kev txiav txim los ntawm lawv txoj haujlwm.

Tom qab ntawd, ib tug kuj yuav nug, yog xyoo nominal los yog ordinal?

Ordinal sib txawv yog categorical. Thaum kawg, xyoo tuaj yeem yog qhov sib txawv nominal. Tej zaum koj yuav muaj cov ntaub ntawv ntawm lub xyoo ntawm kev tuag ntawm ntau tus neeg. Nominal sib txawv yog categorical.

Ib tug kuj yuav nug, yog cov nyiaj tau los nominal lossis ordinal? npe - qhov chaw ntawm nyiaj tau los (cov nyiaj hli, paj, thiab lwm yam) kev cai - Cov chav kawm qis, theem nrab, thiab lwm yam.

Nyob rau hauv no txoj kev, dab tsi yog ib qho piv txwv ntawm ordinal data?

Ordinal cov ntaub ntawv yog cov ntaub ntawv uas tau muab tso rau hauv qee yam kev txiav txim lossis nplai. (Ib zaug ntxiv, qhov no yog qhov yooj yim kom nco qab vim kev cai suab zoo li kev txiav txim). Ib piv txwv ntawm cov ntaub ntawv ordinal yog ntsuas kev zoo siab ntawm qhov ntsuas ntawm 1-10. Hauv nplai cov ntaub ntawv tsis muaj tus nqi tsim nyog rau qhov sib txawv ntawm ib tus qhab nia mus rau lwm qhov.

Puas yog hnub nyoog yog qhov sib txawv nominal?

Nco ntsoov hom ntaub ntawv twg nominal variables piav, xav npe = npe. Piv txwv li, ib muaj hnub nyoog sib txawv ntsuas tsis tu ncua tuaj yeem muaj tus nqi ntawm 23.487 xyoo-yog tias koj xav tau qhov tshwj xeeb! Ib ntus sib txawv yog xam piv yog tias nws muaj lub ntsiab lus zero point (piv txwv li, xws li hauv hnub nyoog los yog nyob deb).

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