https://communities.sas.com/t5/SAS-Procedures/DF-for-parameter-estimate-in-nested-logit-model/m-p/39199#M10094 Briefly, as I get the result from "Proc mdc" for a nested logit model for most of the parameter estimates the DF is 0 "instead of 1" and there is no result for standard error and t value.<BR /> <BR /> can anybody help out? Thu, 14 Aug 2008 17:16:52 GMT deleted_user 2008-08-14T17:16:52Z https://communities.sas.com/t5/SAS-Procedures/DF-for-parameter-estimate-in-nested-logit-model/m-p/39199#M10094 Briefly, as I get the result from "Proc mdc" for a nested logit model for most of the parameter estimates the DF is 0 "instead of 1" and there is no result for standard error and t value.<BR /> <BR /> can anybody help out? Thu, 14 Aug 2008 17:16:52 GMT https://communities.sas.com/t5/SAS-Procedures/DF-for-parameter-estimate-in-nested-logit-model/m-p/39199#M10094 deleted_user 2008-08-14T17:16:52Z https://communities.sas.com/t5/SAS-Procedures/DF-for-parameter-estimate-in-nested-logit-model/m-p/39200#M10095 This item may or may not be applicable to your situation.<BR /> <BR /> SN-009465 ***Alert Note*** <BR /> Nested logit parameters estimates equal to zero with zero degrees of freedom<BR /> <BR /> Product: SAS/ETS <BR /> Component: MDC procedure <BR /> Priority: ALERT <BR /> <BR /> <A href="http://ftp.sas.com/service/techsup/tsnews-l/0366.html" target="_blank">http://ftp.sas.com/service/techsup/tsnews-l/0366.html</A><BR /> <BR /> <BR /> <A href="http://support.sas.com/rnd/app/papers/mdc.pdf" target="_blank">http://support.sas.com/rnd/app/papers/mdc.pdf</A> Thu, 14 Aug 2008 20:40:00 GMT https://communities.sas.com/t5/SAS-Procedures/DF-for-parameter-estimate-in-nested-logit-model/m-p/39200#M10095 sbb 2008-08-14T20:40:00Z