Video: Koj ua Durbin Watson xeem hauv Minitab li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv Minitab : Nyem Stat > Regression > Regression > Fit Regression Model. Nyem "Tsim tau," thiab tshawb xyuas cov Durbin - Watson cov ntaub ntawv.
Yog li ntawd, vim li cas peb thiaj siv Durbin Watson xeem?
Durbin – Watson cov ntaub ntawv . Hauv kev txheeb cais, cov Durbin – Watson cov ntaub ntawv yog a xeem statistic siv txhawm rau txheeb xyuas qhov muaj autocorrelation ntawm lag 1 hauv qhov seem (kev twv ua ntej yuam kev) los ntawm kev txheeb xyuas qhov rov qab.
Kuj Paub, yuav ua li cas yog Durbin Watson xeem tsis tiav? Yog tus Durbin - Watson cov ntaub ntawv nyob nruab nrab ntawm d thiab d (los yog raws nraim sib npaug rau tog twg los d los yog d), lub kev xeem yog inconclusive . Yog tus Durbin - Watson cov ntaub ntawv yog ntau dua d, lub Durbin - Watson cov ntaub ntawv yog ze li 2 qhov zoo autocorrelation tej zaum yuav tsis muaj nyob rau hauv tus qauv.
Tsis tas li ntawd, koj ua li cas kuaj rau autocorrelation?
Ib txoj hauv kev ntawm kuaj rau autocorrelation yog Durbin-Watson xeem . Kev txheeb xyuas software xws li SPSS tuaj yeem suav nrog kev xaiv ntawm kev khiav Durbin-Watson xeem thaum ua qhov kev ntsuam xyuas regression. Lub Durbin-Watson kuaj ua a xeem statistic uas nyob ntawm 0 txog 4.
Dab tsi yog qhov zoo Durbin Watson tus nqi?
Cov Durbin Watson (DW) statistic yog ib qho kev sim rau autocorrelation nyob rau hauv cov residuals los ntawm ib tug statistical regression tsom xam. Cov Durbin - Watson statistic yuav ib txwm muaj tus nqi ua 0i4. Tus nqi los ntawm 0 mus rau tsawg dua 2 qhia zoo autocorrelation thiab tus nqi los ntawm 2 mus rau 4 qhia tsis zoo autocorrelation.
Pom zoo:
Dab tsi yog thaj chaw ntawm pej xeem kev hloov pauv thiab vim li cas nws thiaj li muaj txiaj ntsig thaum kawm txog pej xeem?
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Durbin-Watson cov ntaub ntawv. Nyob rau hauv kev txheeb cais, Durbin-Watson statistic yog ib qho kev xeem statistic siv los kuaj pom muaj autocorrelation ntawm lag 1 nyob rau hauv cov seem (kev twv ua yuam kev) los ntawm kev soj ntsuam regression