tag:blogger.com,1999:blog-593563533834706486.post6727625466010848669..comments2024-03-28T10:35:10.453-04:00Comments on Yet Another Math Programming Consultant: Optimal (Q,R) Inventory Policy as a MIPErwin Kalvelagenhttp://www.blogger.com/profile/09496091402502236997noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-593563533834706486.post-79296698721347906682022-06-27T22:46:42.743-04:002022-06-27T22:46:42.743-04:00GAMS.GAMS.Erwin Kalvelagenhttps://www.blogger.com/profile/09496091402502236997noreply@blogger.comtag:blogger.com,1999:blog-593563533834706486.post-21910946805587553502022-06-26T11:33:06.542-04:002022-06-26T11:33:06.542-04:00what application that you used for coding the mode...what application that you used for coding the model? Cplex or something else.Saphirehttps://www.blogger.com/profile/16896474953801177351noreply@blogger.comtag:blogger.com,1999:blog-593563533834706486.post-2549934673055347212022-02-10T03:36:21.456-05:002022-02-10T03:36:21.456-05:00Ah yeah, thank you. I could have read this in your...Ah yeah, thank you. I could have read this in your description, sorry! I was usually used to something like initInv$(ord(t)=1)Justushttps://www.blogger.com/profile/01712168146987759238noreply@blogger.comtag:blogger.com,1999:blog-593563533834706486.post-59464094095358941832022-02-09T04:54:33.087-05:002022-02-09T04:54:33.087-05:00Yes it does. It is a sparse vector with one elemen...Yes it does. It is a sparse vector with one element. That makes it easier to write just one equation for the inventory balance. No special case for the first period. This is somewhat of a standard trick in models dealing with inventory. Erwin Kalvelagenhttps://www.blogger.com/profile/09496091402502236997noreply@blogger.comtag:blogger.com,1999:blog-593563533834706486.post-30342592444362841422022-02-09T04:07:27.494-05:002022-02-09T04:07:27.494-05:00The parameter `initInv` should not have the index ...The parameter `initInv` should not have the index t in the MIP model summary (2).Justushttps://www.blogger.com/profile/01712168146987759238noreply@blogger.comtag:blogger.com,1999:blog-593563533834706486.post-28755425934624703042021-04-30T07:31:15.501-04:002021-04-30T07:31:15.501-04:00the reference link seems broken the reference link seems broken matyhttps://www.blogger.com/profile/00365429859757973970noreply@blogger.com