Tswb-Suab: A histogram nrog qhov tseem ceeb 'mound' nyob rau hauv nruab nrab thiab zoo li tapering rau sab laug thiab sab xis. Ib qho kev qhia ntawm cov duab no yog tias cov ntaub ntawv tsis zoo - txhais tau tias cov ntaub ntawv muaj ib hom, txheeb xyuas los ntawm 'peak' ntawm nkhaus.
lub tswb zoo li histogram txhais li cas?
Tswb-puab: Ib daim duab tswb, qhia hauv qab no, feem ntau nthuav tawm ib txwm faib. Bimodal: Ib daim duab bimodal, qhia hauv qab no, muaj ob lub ncov. … Yog tias qhov zoo li no tshwm sim, ob qhov chaw yuav tsum tau muab cais thiab tshuaj xyuas nyias. Skewed txoj cai: Qee cov histograms yuav qhia txog kev faib tawm mus rau sab xis, raws li qhia hauv qab no.
Koj paub li cas yog tias tus histogram yog tswb-puab?
Txoj hauv kev pom tseeb tshaj plaws los qhia yog tias qhov kev faib tawm yog kwv yees li ib txwm yog saib ntawm tus histogram nws tus kheej. Yog tias daim duab yog kwv yees li tswb-puab thiab sib luag txog qhov nruab nrab, koj tuaj yeem feem ntau xav li qub.
hom kev faib tawm twg muaj lub tswb zoo li histogram?
Ib qho qauv yog lub tswb-puab nkhaus hu ua "ib txwm faib." Hauv kev faib tawm ib txwm lossis "tus qauv", cov ntsiab lus zoo li yuav tshwm sim ntawm ib sab ntawm qhov nruab nrab ib yam li ntawm lwm qhov. Nco ntsoov tias lwm qhov kev faib tawm zoo ib yam li qhov kev faib tawm ib txwm.
Puas yog tswb-puab histogram symmetric?
Ib qho kev faib tawm ib txwm yog kev faib tawm tiag tiag ntawm cov txiaj ntsig pom. Thaum muaj histogramtsim los ntawm cov txiaj ntsig uas ib txwm faib, cov duab ntawm txhua kab tsim lub tswb sib luag cov duab. Qhov no yog vim li cas qhov kev faib tawm no tseem hu ua 'ib txwm nkhaus' lossis ' tswb nkhaus'.
