Dab tsi yog standard deviation nyob rau hauv tableau?
Dab tsi yog standard deviation nyob rau hauv tableau?

Video: Dab tsi yog standard deviation nyob rau hauv tableau?

Video: Dab tsi yog standard deviation nyob rau hauv tableau?
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Txuj kev sib txawv tsuas yog ib qho kev ntsuas ntawm kev nthuav tawm cov ntaub ntawv los ntawm qhov nruab nrab. Nrhiav qhov standard deviation nyob rau hauv Tableau tsuas yog hloov qhov sib sau ua ke ntawm kev ntsuas. Ob qho tib si pej xeem thiab cov qauv txheem deviations yog built-in aggregation xaiv.

Yog li ntawd, tus qauv sib txawv txhais li cas?

Txuj kev sib txawv yog tus lej siv los qhia seb qhov kev ntsuas rau ib pawg twg kis tau los ntawm qhov nruab nrab ( txhais tau tias ), lossis tus nqi xav tau. Ib qho qis standard deviation txhais tau tias tias feem ntau ntawm cov lej nyob ze rau qhov nruab nrab. Ib siab standard deviation txhais tau tias tias cov lej tau nthuav tawm ntau dua.

Tsis tas li ntawd, Tableau puas yog cov cuab yeej txheeb xyuas? Kuv tuaj yeem hais li no: Tableau feem ntau yog ib qho kev pom cuab yeej , tsis a txheeb cais tsom xam cuab yeej . Nws txuas rau R, uas koj tuaj yeem siv rau lub txheeb cais tsom xam. Nws yuav tsis txiav txim siab ntoo lossis ARIMA lossis lwm yam sophisticated txheeb cais los yog kev kawm tob ntawm nws tus kheej.

Tsuas yog li ntawd, koj txhais li cas tus qauv sib txawv?

Yeej, me me txheem sib txawv txhais tau hais tias qhov tseem ceeb hauv cov ntaub ntawv txheeb cais yog ze rau qhov nruab nrab ntawm cov ntaub ntawv teev, qhov nruab nrab, thiab loj txheem sib txawv txhais tau hais tias qhov tseem ceeb hauv cov ntaub ntawv teev nyob deb deb ntawm qhov nruab nrab, qhov nruab nrab.

Dab tsi yog qhov kev sib sau ua ke hauv Tableau?

Tableau Qhov tseem ceeb: xam cov teb – Aggregate Functions . Aggregate Functions yog hom muaj nuj nqi qhov twg qhov tseem ceeb ntawm ntau kab yog pawg ua ke raws li cov tswv yim los tsim ib qho txiaj ntsig ntawm ntau lub ntsiab lus tseem ceeb, xws li cov teeb lossis cov npe.

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