Puas spearman xav tias ib txwm faib?

Cov txheej txheem:

Puas spearman xav tias ib txwm faib?
Puas spearman xav tias ib txwm faib?
Anonim

Spearman txoj kev sib raug zoo yog qib raws li kev sib txheeb ntsuas; nws tsis yog parametric thiab tsis so raws li qhov kev xav ntawm qhov qub.

Puas Spearman xav tau kev faib khoom ib txwm?

Qhov zoo ntawm Spearman kev sib raug zoo yog nyob ntawm yuav luag txhua qhov kev xav zoo ib yam li kev sib raug zoo ntawm pearson, tab sis nws tsis cia siab rau qhov qub, thiab koj cov ntaub ntawv tuaj yeem ua tau. ib yam nkaus thiab. Yog li, nws yog qhov kev sim tsis yog parametric.

Dab tsi yog qhov kev xav ntawm Spearman correlation?

Cov kev xav ntawm Spearman correlation yog tias cov ntaub ntawv yuav tsum yog yam tsawg kawg nkaus thiab cov qhab nia ntawm ib qho kev sib txawv yuav tsum yog monotonically cuam tshuam rau lwm qhov sib txawv.

Pearson puas xav tias ib txwm faib?

Pearson qhov sib txheeb yog qhov ntsuas ntawm kev sib raug zoo ntawm ob qhov sib txawv tsis tu ncua. Nws tsis xav li qub txawm hais tias nws xav tias qhov sib txawv ntawm qhov kawg thiab qhov sib txawv kawg.

Yuav siv li cas yog tias cov ntaub ntawv tsis raug faib tawm?

Thaum qhov sib txawv tsis nquag faib lossis kev sib raug zoo ntawm qhov sib txawv tsis yog kab, nws yuav raug pom zoo kom siv Spearman rank correlation method. Tus coefficient ntawm kev sib raug zoo tsis muaj kev faib tawm.

Pom zoo: