Video: Hom duab twg yog siv rau cov ntaub ntawv ib txwm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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:
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Cov yam ntxwv ntawm cov ntaub ntawv twg yog qhov ntsuas ntawm tus nqi uas cov ntaub ntawv muaj nuj nqis heev?
Variation: Ib qho kev ntsuas ntawm tus nqi uas cov ntaub ntawv muaj nuj nqis sib txawv. ? Kev faib tawm: Cov xwm txheej lossis cov duab ntawm kev sib kis ntawm cov ntaub ntawv hla ntau qhov tseem ceeb (xws li tswb-puab). ? Outliers: Cov qauv piv txwv uas nyob deb heev ntawm feem ntau ntawm lwm cov qauv nqi
Cov kws kos duab hu li cas cov duab thiab cov duab siv los sawv cev rau cov yam ntxwv ntawm lub ntiaj teb nto?
Ntiaj Teb Kev Tshawb Fawb - Daim Ntawv Qhia Lub Ntiaj Teb Qhov Nto A B GLOBE Ib puag ncig uas sawv cev rau lub ntiaj teb nto. SCALE Siv los sib piv qhov deb ntawm daim ntawv qhia lossis lub ntiaj teb mus deb ntawm lub ntiaj teb nto. SYMBOLS Ntawm daim duab qhia chaw, cov duab siv los ntawm mapmakers sawv ntsug rau cov yam ntxwv ntawm lub ntiaj teb nto. TSEEM CEEB Ib daim ntawv teev cov cim siv rau ntawm daim ntawv qhia
Thaum muab piv cov qauv sau rau ib tus neeg raug liam cov ntaub ntawv lub hnub nyoog sib txawv ntawm cov ntaub ntawv yuav tsum tsis pub tshaj kaum ob lub hlis?
Thaum piv cov qauv sau rau tus neeg raug liam? cov ntaub ntawv, lub hnub nyoog sib txawv ntawm cov ntaub ntawv yuav tsum tsis pub ntau tshaj rau rau kaum ob lub hlis. Tus lej txaus ntawm tus qauv yog qhov tseem ceeb rau kev txiav txim siab qhov tshwm sim ntawm kev sib piv
Dab tsi yog cov cuab yeej lossis cov ntaub ntawv uas tus Kws Tshawb Fawb xav tau los txheeb xyuas cov ntaub ntawv nug?
Cov ntaub ntawv raug nug hauv chav kuaj ua txhaum cai yog nruab nrog lub tshuab ntsuas ntsuas, ntsuas cov duab digital, infrared thiab ultraviolet lub teeb ci, cov cuab yeej tshuaj ntsuam video thiab cov cuab yeej tshwj xeeb suav nrog cov khoom siv hluav taws xob tshawb pom electrostatic (EDD) thiab cov khoom siv los ua chemistry