Video: Dab tsi yog lub laj kab sab sauv hauv kev txheeb cais?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Qhov qis dua thiab laj kab ? Qhov qis laj kab yog "tso cai" thiab cov Sab saum toj laj laj yog " sab sauv txwv" ntawm cov ntaub ntawv, thiab txhua cov ntaub ntawv dag sab nraum qhov kev cia siab no tuaj yeem suav tias yog qhov outlier LF = Q1 - 1.5 * IQR.
Ua li no, ua li cas koj pom lub laj kab sab saud hauv kev txheeb cais?
Saum toj thiab qis dua laj kab cordon tawm outliers los ntawm tej ntaub ntawv nyob rau hauv ib txheej. laj kab feem ntau pom muaj cov qauv hauv qab no: Sab saum toj laj laj = Q3 + (1.5 * IQR) qis laj kab = Q1 – (1.5 * IQR).
Tsis tas li ntawd, lub laj kab saum toj ntawm lub thawv ntawv yog dab tsi? A lub thawv ntawv yog tsim los ntawm kev kos duab a lub thawv nruab nrab ntawm sab sauv thiab qis quartiles nrog ib tug khoom kab kos hla lub lub thawv mus nrhiav qhov nruab nrab. Cov khoom nram qab no (hu ua laj kab ) yog xav tau rau kev txheeb xyuas qhov tseem ceeb hauv cov tails ntawm kev faib khoom: qis sab hauv laj kab Q1 - 1.5 * IQ. sab sauv sab hauv laj kab Qhov Loj: Q3 + 1.5 *
Ib yam li ntawd, koj yuav nrhiav tau lub laj kab sab saud li cas?
Rau txheeb xyuas outliers, sab sauv thiab qis dua laj kab tuaj yeem siv los teeb tsa cov qhab nia ntawm cov ntaub ntawv. Rau nrhiav tus laj kab , cov quartiles ntawm cov ntaub ntawv teev yuav tsum pom, ua rau IQR ntawm cov teeb. Cov mis rau lub laj kab yog Q3 + 1.5 IQR thiab cov mis rau qis laj kab yog Q1-1.5 IQR.
Koj pom qhov ntau npaum li cas?
Summary: Lub ntau ntawm ib txheej ntawm cov ntaub ntawv yog qhov sib txawv ntawm qhov siab tshaj thiab qis tshaj qhov tseem ceeb hauv cov txheej txheem. Rau nrhiav qhov ntau , ua ntej xaj cov ntaub ntawv los ntawm tsawg kawg mus rau qhov loj tshaj plaws. Tom qab ntawd rho tus nqi tsawg tshaj plaws los ntawm tus nqi loj tshaj plaws hauv cov teeb.
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