Yuav ua li cas yog vim li cas) rau qhov tshwm sim ntawm outliers?

2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38

Feem ntau ua rau muaj qhov tsis txaus ntseeg ntawm cov ntaub ntawv teev: ntsuas qhov yuam kev (cov cuab yeej yuam kev) Kev sim ua yuam kev (cov ntaub ntawv rho tawm lossis kev sim npaj / ua qhov yuam kev) Kev mob siab (dummy outliers tau sim kev tshawb nrhiav) Cov ntaub ntawv ua yuam kev (cov ntaub ntawv tswj lossis cov ntaub ntawv teeb tsa kev hloov pauv tsis xav tau)

Yuav ua li cas yog vim li cas rau qhov outlier?

Nws muaj peb qhov ua rau qhov tsis sib xws - cov ntaub ntawv nkag / Ib qho kev sim ntsuas qhov yuam kev, teeb meem piv txwv, thiab kev hloov pauv ntuj tsim. Qhov yuam kev tuaj yeem tshwm sim thaum sim / nkag cov ntaub ntawv. Thaum lub sij hawm nkag cov ntaub ntawv, tus typo tuaj yeem ntaus tus nqi tsis raug los ntawm kev ua yuam kev.

Qhov twg cuam tshuam ntau tshaj los ntawm cov neeg tawm?

Mean, qhov nruab nrab thiab hom yog ntsuas qhov nruab nrab nyiam. Lub ntsiab lus yog tib qhov kev ntsuas ntawm lub hauv paus nyiam uas ib txwm cuam tshuam los ntawm qhov outlier. Lub ntsiab lus, qhov nruab nrab, yog qhov kev ntsuas nrov tshaj plaws ntawm lub hauv paus nyiam.

Puas yog ntau yam cuam tshuam los ntawm cov neeg tawm?

Yog tias peb muaj ib txheej ntawm {52, 54, 56, 58, 60}, peb tau r=60−52=8, yog li qhov ntau yog 8. Muab qhov peb tam sim no paub, nws yog qhov tseeb rau hais tias tus outlier yuav cuam tshuam rau kev khiav g e tshaj plaws.

Yuav tsum tshem tawm cov ntaub ntawv tawm?

Kev tshem tawm cov neeg tawm yog raug cai tsuas yog rau cov laj thawj tshwj xeeb Cov neeg tawm tuaj yeem qhia tau zoo txog cov ncauj lus thiab cov txheej txheem sau cov ntaub ntawv. … Outliers ua rau muaj qhov sib txawv ntawm koj cov ntaub ntawv, uas txo qis lub zog ntawm cov lej. Yog li ntawd, tsis suav nrog cov ntawv tshaj tawm tuaj yeem ua rau koj cov txiaj ntsig tau dhau los ua qhov tseem ceeb.