Hom duab twg yog siv rau cov ntaub ntawv ib txwm?
Hom duab twg yog siv rau cov ntaub ntawv ib txwm?

Video: Hom duab twg yog siv rau cov ntaub ntawv ib txwm?

Video: Hom duab twg yog siv rau cov ntaub ntawv ib txwm?
Video: ib sim cas tsis tsim nyog tsom xyooj 2022 2024, Kaum ib hlis
Anonim

Hauv kev txheeb cais, cov kev cai yooj yim yog raws li hauv qab no: Rau nominal/ordinal variables, siv paj paj thiab bar kab kos . Rau lub sijhawm / piv txwv, siv histograms ( bar kab kos ntawm sib npaug lub sijhawm )

Tsis tas li ntawd, hom duab twg siv rau cov ntaub ntawv txuas ntxiv?

Discrete cov ntaub ntawv yog qhov zoo tshaj plaws sawv cev siv cov kab kos bar. Kub daim duab feem ntau yuav yog kab daim duab vim cov cov ntaub ntawv yog tsis tu ncua . Thaum koj nyob daim duab Cov feem pua ntawm kev faib khoom noj khoom haus yuav tsim nyog.

Tsis tas li ntawd, koj puas tuaj yeem siv histogram rau cov ntaub ntawv sau tseg? Qhov sib txawv loj yog tias a histogram tsuas yog siv los teeb tsa qhov zaus ntawm cov qhab nia tshwm sim hauv ib ntus cov ntaub ntawv teeb uas tau muab faib ua cov chav kawm, hu ua bins. Bar charts, ntawm qhov tod tes, ua tau siv tau rau ntau yam ntawm lwm hom kev hloov pauv xws li kev cai thiab nominal cov ntaub ntawv teeb.

Tom qab ntawd, lo lus nug yog, dab tsi yog hom ntaub ntawv teev tseg?

Ordinal cov ntaub ntawv yog categorical, statistical hom ntaub ntawv qhov twg cov variables muaj natural, order categories thiab qhov deb ntawm cov pawg tsis paub. Cov no cov ntaub ntawv muaj nyob rau ntawm ib kev cai scale, ib qho ntawm plaub theem ntawm kev ntsuas tau piav qhia los ntawm S. S. Stevens hauv xyoo 1946.

Cov duab twg zoo tshaj rau cov ntaub ntawv dab tsi?

Plaub feem ntau yog tej zaum kab graphs , daim duab bar thiab histograms, paj paj , thiab Cartesian graphs. Lawv feem ntau siv rau, thiab zoo tshaj plaws rau, ntau yam sib txawv. Koj yuav siv: Bar graphs los qhia cov lej uas tsis muaj kev ywj pheej ntawm ib leeg.

Pom zoo: