Video: Kev siv logistic regression yog dab tsi?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Logistic regression yog qhov tsim nyog regression tsom xam los ua thaum qhov sib txawv ntawm qhov sib txawv yog dichotomous (binary). Logistic regression yog siv los piav qhia cov ntaub ntawv thiab piav qhia txog kev sib raug zoo ntawm ib qho kev sib txawv ntawm qhov sib txawv thiab ib lossis ntau qhov nominal, ordinal, interval los yog piv-theem ywj pheej variables.
Tib neeg kuj nug, thaum twg yuav tsum siv logistic regression?
Thaum siv Logistic Regression . Koj yuav tsum xav txog kev siv logistic regression thaum koj tus lej Y sib txawv tsuas siv ob qhov txiaj ntsig xwb. Xws li qhov sib txawv yog xa mus rau "binary" lossis "dichotomous." "Dichotomous" txhais tau tias yog ob pawg xws li yog / tsis yog, puas / tsis muaj qhov tsis zoo, ua tiav / tsis ua haujlwm, thiab lwm yam.
Ib yam li ntawd, txhais li cas los ntawm logistic regression? Kev piav qhia. Logistic regression yog ib txoj hauv kev los txheeb xyuas cov ntaub ntawv uas muaj ib lossis ntau qhov txawv txav uas txiav txim siab txog qhov tshwm sim. Cov txiaj ntsig tau ntsuas nrog qhov sib txawv dichotomous (nyob rau hauv uas tsuas muaj ob qhov tshwm sim tau).
Ib yam li ntawd, nws raug nug, qhov twg logistic regression siv?
Logistic regression yog siv nyob rau hauv ntau yam, suav nrog kev kawm tshuab, feem ntau kev kho mob, thiab social sciences. Piv txwv li, Kev Txhaum Cai thiab Kev Raug Mob hnyav (TRISS), uas yog dav siv los kwv yees kev tuag ntawm cov neeg mob raug mob, yog thawj zaug tsim los ntawm Boyd li al. siv logistic regression.
Lub logistic regression ua haujlwm li cas?
Gaussian Distribution: Logistic regression yog linear algorithm (nrog rau qhov tsis yog-linear hloov ntawm cov zis). Nws ua xav tias ib tug linear kev sib raug zoo ntawm cov input variables nrog cov zis. Cov ntaub ntawv hloov pauv ntawm koj cov tswv yim sib txawv uas zoo dua nthuav tawm qhov kev sib raug zoo no tuaj yeem ua rau tus qauv raug dua.
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