topic How to get each part of the whole objective function? in Mathematical Optimization, Discrete-Event Simulation, and OR https://communities.sas.com/t5/Mathematical-Optimization/How-to-get-each-part-of-the-whole-objective-function/m-p/209322#M1057 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>My objective function Z is a summation of many portions, at initial solving, I just define objective function as Z = sum .....&nbsp; Now I need some parts of it, like Z1 = sum ... ; Z2 = sum... ; Z3 = sum...</P><P></P><P>Where Z= Z1 + Z2 +Z3 + ... ;</P><P></P><P>How could I define each Z1, Z2, Z3 ? Thanks!</P><P></P><P>Details is as the attachment below:</P><P></P><P>(Last several lines after "quit" is I want to add)</P><P></P><P>Thanks!</P></BODY></HTML> Wed, 22 Jul 2015 20:01:19 GMT Crubal 2015-07-22T20:01:19Z How to get each part of the whole objective function? https://communities.sas.com/t5/Mathematical-Optimization/How-to-get-each-part-of-the-whole-objective-function/m-p/209322#M1057 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>My objective function Z is a summation of many portions, at initial solving, I just define objective function as Z = sum .....&nbsp; Now I need some parts of it, like Z1 = sum ... ; Z2 = sum... ; Z3 = sum...</P><P></P><P>Where Z= Z1 + Z2 +Z3 + ... ;</P><P></P><P>How could I define each Z1, Z2, Z3 ? Thanks!</P><P></P><P>Details is as the attachment below:</P><P></P><P>(Last several lines after "quit" is I want to add)</P><P></P><P>Thanks!</P></BODY></HTML> Wed, 22 Jul 2015 20:01:19 GMT https://communities.sas.com/t5/Mathematical-Optimization/How-to-get-each-part-of-the-whole-objective-function/m-p/209322#M1057 Crubal 2015-07-22T20:01:19Z Re: How to get each part of the whole objective function? https://communities.sas.com/t5/Mathematical-Optimization/How-to-get-each-part-of-the-whole-objective-function/m-p/209323#M1058 <HTML><HEAD></HEAD><BODY><P>You can use the IMPVAR statement to declare each part:</P><P><A href="http://support.sas.com/documentation/cdl/en/ormpug/68156/HTML/default/viewer.htm#ormpug_optmodel_syntax03.htm#ormpug.optmodel.npximpvarstmt" title="http://support.sas.com/documentation/cdl/en/ormpug/68156/HTML/default/viewer.htm#ormpug_optmodel_syntax03.htm#ormpug.optmodel.npximpvarstmt">SAS/OR(R) 14.1 User's Guide: Mathematical Programming</A></P><P></P><P>And then declare your objective as:</P><P>min Z = Z1 + Z2 + ...</P><P></P><P>This way, you don't have to repeat the expressions.</P></BODY></HTML> Wed, 22 Jul 2015 20:20:40 GMT https://communities.sas.com/t5/Mathematical-Optimization/How-to-get-each-part-of-the-whole-objective-function/m-p/209323#M1058 RobPratt 2015-07-22T20:20:40Z Re: How to get each part of the whole objective function? https://communities.sas.com/t5/Mathematical-Optimization/How-to-get-each-part-of-the-whole-objective-function/m-p/209324#M1059 <HTML><HEAD></HEAD><BODY><P>That's helpful! Thank you!</P></BODY></HTML> Wed, 22 Jul 2015 22:49:19 GMT https://communities.sas.com/t5/Mathematical-Optimization/How-to-get-each-part-of-the-whole-objective-function/m-p/209324#M1059 Crubal 2015-07-22T22:49:19Z