topic Mixture of one truncated lognormal distribution and one lognormal distributon, version 9.2 in SAS Procedures https://communities.sas.com/t5/SAS-Procedures/Mixture-of-one-truncated-lognormal-distribution-and-one/m-p/142216#M37853 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>Could someone please explain me how to fit a mixture of one truncated lognormal distribution and one lognormal distribution in SAS version 9.2, ideally using proc nlmixed. Also, is there an option to perform Dirichlet process mixture model using SAS?</P><P></P><P>Thank you.</P></BODY></HTML> Wed, 30 Jul 2014 14:21:13 GMT Pariz 2014-07-30T14:21:13Z Mixture of one truncated lognormal distribution and one lognormal distributon, version 9.2 https://communities.sas.com/t5/SAS-Procedures/Mixture-of-one-truncated-lognormal-distribution-and-one/m-p/142216#M37853 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>Could someone please explain me how to fit a mixture of one truncated lognormal distribution and one lognormal distribution in SAS version 9.2, ideally using proc nlmixed. Also, is there an option to perform Dirichlet process mixture model using SAS?</P><P></P><P>Thank you.</P></BODY></HTML> Wed, 30 Jul 2014 14:21:13 GMT https://communities.sas.com/t5/SAS-Procedures/Mixture-of-one-truncated-lognormal-distribution-and-one/m-p/142216#M37853 Pariz 2014-07-30T14:21:13Z Re: Mixture of one truncated lognormal distribution and one lognormal distributon, version 9.2 https://communities.sas.com/t5/SAS-Procedures/Mixture-of-one-truncated-lognormal-distribution-and-one/m-p/142217#M37854 <HTML><HEAD></HEAD><BODY><P>Do you have code for the likelihood function of the two distributions in hand?&nbsp; If so, then multiplying the first by p(i) and the second by 1 - p(i), and summing ought to be a first step.&nbsp; If you do not have the likelihood functions, you might try searching the SAS-L archives or Lex Janssen's site.</P><P></P><P>Steve Denham</P></BODY></HTML> Thu, 31 Jul 2014 11:50:44 GMT https://communities.sas.com/t5/SAS-Procedures/Mixture-of-one-truncated-lognormal-distribution-and-one/m-p/142217#M37854 SteveDenham 2014-07-31T11:50:44Z