Video: Dab tsi ua rau outliers hauv cov ntaub ntawv?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Outliers feem ntau ua rau los ntawm tib neeg yuam kev, xws li yuam kev hauv cov ntaub ntawv sau, sau, lossis nkag. Cov ntaub ntawv los ntawm kev xam phaj tuaj yeem sau tsis raug, lossis tsis raug cov ntaub ntawv nkag.
Ua raws li qhov no hauv kev txiav txim siab, vim li cas thiaj muaj cov ntawv tshaj tawm?
Hauv kev txheeb cais, ib outlier yog a cov ntaub ntawv point uas txawv heev ntawm lwm cov kev soj ntsuam. Ib outlier tej zaum yuav yog vim variability nyob rau hauv tus ntsuas nws yuav qhia tau tias kev sim ua yuam kev; tus tom kawg yog qee zaum cais los ntawm cov ntaub ntawv teeb. Ib outlier tuaj yeem ua rau muaj teeb meem loj hauv kev txheeb cais.
Tsis tas li ntawd, dab tsi yog outliers hauv kev tshawb fawb? Kev txhais ntawm outliers . Ib outlier yog anobservation uas dag ib tug txawv txav deb ntawm lwm yam tseem ceeb nyob rau hauv random qauv los ntawm ib tug pej xeem. Hauv kev nkag siab, qhov kev txhais no tawm mus rau tus kws tshuaj ntsuam (lossis txheej txheem kev pom zoo) los txiav txim siab seb qhov twg yuav raug txiav txim siab txawv txav.
Kuj kom paub, koj ua li cas nrhiav cov outliers hauv cov ntaub ntawv?
Ib qho point uas ntog sab nraum lub cov ntaub ntawv teeb lub innerfences yog cais raws li ib tug me outlier , hos ib tug uas ntog sab nraum lub laj kab sab nrauv yog cais raws li ib tug loj outlier . Txhawm rau nrhiav cov laj kab sab hauv rau koj cov ntaub ntawv teem, ua ntej, muab cov interquartile ntau los ntawm 1.5. Tom qab ntawd, ntxiv qhov ntawd rau Q3 thiab rho tawm ntawm Q1.
Nws txhais li cas los ua ib tug outlier?
Ib “ outlier ” yog leej twg los yog txhua yam uas nyob deb ntawm qhov ib txwm muaj. Hauv kev lag luam, ib outlier yog ib tug neeg ua tau ntau dua los yog tsawg dua kev vam meej tshaj feem coob. Ua koj xav ua ib tug outlier nyob rau saum kawg ntawm kev vam meej nyiaj txiag? Muaj tseeb tiag. Outliers Nws kuj yog ib phau ntawv nrov heev los ntawm Malcolm Gladwell.
Pom zoo:
Dab tsi yog lub hom phiaj ntawm delimiters nyob rau hauv cov ntawv sau npe ob hom ntawv cov ntaub ntawv delimiters?
Cov ntaub ntawv delimited yog cov ntawv nyeem siv los khaws cov ntaub ntawv, uas txhua kab sawv cev rau ib phau ntawv, tuam txhab, lossis lwm yam, thiab txhua kab muaj cov teb sib cais los ntawm tus lej
Dab tsi yog outliers hauv kev txheeb xyuas cov ntaub ntawv?
Hauv kev txheeb cais, ib qho outlier yog cov ntaub ntawv taw qhia uas txawv ntawm lwm cov kev soj ntsuam. Anoutlier tej zaum yuav yog vim qhov txawv ntawm qhov ntsuas lossis nws tuaj yeem qhia qhov kev sim ua yuam kev; cov tom kawg yog qee zaum raug cais tawm ntawm cov ntaub ntawv teeb tsa. Ib qho outlier tuaj yeem ua rau muaj teeb meem loj hauv kev txheeb cais
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