topic Re: procedure to obtain multiplicative model? in SAS Procedures https://communities.sas.com/t5/SAS-Procedures/procedure-to-obtain-multiplicative-model/m-p/701003#M79857 <P>Within time series analysis or some other context?</P> Mon, 23 Nov 2020 18:51:30 GMT Reeza 2020-11-23T18:51:30Z procedure to obtain multiplicative model? https://communities.sas.com/t5/SAS-Procedures/procedure-to-obtain-multiplicative-model/m-p/700968#M79856 <P>Does someone know which procedure to use to obtain a multiplicative model in SAS?<BR />Thanks!</P> Mon, 23 Nov 2020 16:41:43 GMT https://communities.sas.com/t5/SAS-Procedures/procedure-to-obtain-multiplicative-model/m-p/700968#M79856 magalineven 2020-11-23T16:41:43Z Re: procedure to obtain multiplicative model? https://communities.sas.com/t5/SAS-Procedures/procedure-to-obtain-multiplicative-model/m-p/701003#M79857 <P>Within time series analysis or some other context?</P> Mon, 23 Nov 2020 18:51:30 GMT https://communities.sas.com/t5/SAS-Procedures/procedure-to-obtain-multiplicative-model/m-p/701003#M79857 Reeza 2020-11-23T18:51:30Z Re: procedure to obtain multiplicative model? https://communities.sas.com/t5/SAS-Procedures/procedure-to-obtain-multiplicative-model/m-p/701043#M79858 <P>In the context of estimating a marketshare at a certain moment. We have around 10 independent variables (price, promotion, ...).</P> Mon, 23 Nov 2020 20:42:58 GMT https://communities.sas.com/t5/SAS-Procedures/procedure-to-obtain-multiplicative-model/m-p/701043#M79858 magalineven 2020-11-23T20:42:58Z Re: procedure to obtain multiplicative model? https://communities.sas.com/t5/SAS-Procedures/procedure-to-obtain-multiplicative-model/m-p/701218#M79860 <P>You can use PROC NLIN to define and solve multiplicative models.&nbsp;</P> Tue, 24 Nov 2020 13:52:23 GMT https://communities.sas.com/t5/SAS-Procedures/procedure-to-obtain-multiplicative-model/m-p/701218#M79860 Rick_SAS 2020-11-24T13:52:23Z Re: procedure to obtain multiplicative model? https://communities.sas.com/t5/SAS-Procedures/procedure-to-obtain-multiplicative-model/m-p/701316#M79863 <P>Recall that a multiplicative model is additive in the log space.&nbsp; Consequently, procedures such as GENMOD, GEE, GLIMMIX, HPGENSELECT and TRANSREG in SAS/STAT, and X11, X13, ESM and ARIMA in SAS/ETS can be used to fit multiplicative models.&nbsp; You should look through some of the worked examples in the documentation to see which might fit your needs.</P> <P>&nbsp;</P> <P>SteveDenham</P> Tue, 24 Nov 2020 18:22:17 GMT https://communities.sas.com/t5/SAS-Procedures/procedure-to-obtain-multiplicative-model/m-p/701316#M79863 SteveDenham 2020-11-24T18:22:17Z