Qhov txawv ntawm Spearman thiab Pearson yog dab tsi?
Qhov txawv ntawm Spearman thiab Pearson yog dab tsi?

Video: Qhov txawv ntawm Spearman thiab Pearson yog dab tsi?

Video: Qhov txawv ntawm Spearman thiab Pearson yog dab tsi?
Video: Qhov Txawv Ntawm Lus Hmoob Thiab Lus Mab Mawb 2024, Kaum ib hlis
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Cov qhov sib txawv ntawm tus Pearson correlation thiab Spearman correlation yog qhov Pearson yog qhov tsim nyog tshaj plaws rau kev ntsuas coj los ntawm lub sijhawm ntsuas, thaum lub Spearman Nws yog qhov tsim nyog rau kev ntsuas ntsuas los ntawm cov ntsuas ntsuas.

Kuj nug tias, vim li cas koj thiaj siv Spearman qib?

Spearman's Rank kev sib txuas coefficient yog ib tug txheej txheem uas ua tau ua siv rau Qhia txog lub zog thiab kev taw qhia (tsis zoo lossis qhov zoo) ntawm kev sib raug zoo ntawm ob qhov sib txawv. Qhov tshwm sim yuav ib txwm nyob nruab nrab ntawm 1 thiab rho tawm 1. Tsim ib lub rooj los ntawm koj cov ntaub ntawv. Qib ob daim ntawv teev.

Kuj Paub, koj txhais li cas Spearman correlation? Cov Spearman kev sib raug zoo coefficient, rs, tuaj yeem coj qhov tseem ceeb ntawm +1 txog -1. Ib rs ntawm +1 qhia txog kev sib koom ua ke zoo tshaj plaws ntawm qib, a rs ntawm xoom qhia tias tsis muaj kev sib raug zoo ntawm qib thiab rs ntawm -1 qhia txog kev sib koom ua ke tsis zoo ntawm qib. Qhov ze rs yog mus rau xoom, lub weaker lub koom haum ntawm cov qeb.

Ntawm no, vim li cas peb thiaj siv Pearson correlation?

Feem ntau Siv Lub bivariate Pearson kev sib raug zoo qhia txog cov hauv qab no: Txawm hais tias muaj kev sib raug zoo ntawm kev sib raug zoo nyob nruab nrab ntawm ob qhov sib txawv tsis tu ncua. Lub zog ntawm txoj kev sib raug zoo (piv txwv li, kev sib raug zoo li cas los ua ib txoj kab ncaj nraim)

Kuv puas yuav tsum siv Pearson lossis Spearman?

Qhov txawv ntawm cov Pearson correlation thiab Spearman correlation yog qhov Pearson yog qhov tsim nyog tshaj plaws rau kev ntsuas los ntawm qhov ntsuas lub sijhawm, thaum lub Spearman Nws yog qhov tsim nyog rau kev ntsuas ntsuas los ntawm cov ntsuas ntsuas.

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