LP Solve Add-on

Use this forum to post Vensim related questions.
Post Reply
rcalon
Junior Member
Posts: 2
Joined: Wed Nov 28, 2018 5:41 pm
Vensim version: DSS

LP Solve Add-on

Post by rcalon »

I am using the LP Solve add-on to build in a market clearing mechanism in a heat model. However, I'm not able to create dynamic inputs that allow me to change the "objective contribution" (marginal costs) over time in the "LP Solve" function. The same limitation prevents me from changing the "upper bounds" (installed capacity) of the function. I was wondering if someone knows if it possible to change the variables in this function over time? Somehow this is not a problem for the 'constraint value' variable. Thanks in advance!
Attachments
Capacity Allocation with LP.mdl
(3.8 KiB) Downloaded 187 times
Administrator
Super Administrator
Posts: 4573
Joined: Wed Mar 05, 2003 3:10 am

Re: LP Solve Add-on

Post by Administrator »

rcalon wrote: Thu Nov 29, 2018 2:01 pmHowever, I'm not able to create dynamic inputs that allow me to change the "objective contribution" (marginal costs) over time in the "LP Solve" function.
Why? What errors are you getting when you change this? They are just constants in the model, there is nothing stopping you from changing them.
Advice to posters seeking help (it really helps us to help you)
http://www.ventanasystems.co.uk/forum/v ... f=2&t=4391

Units are important!
http://www.bbc.co.uk/news/magazine-27509559
rcalon
Junior Member
Posts: 2
Joined: Wed Nov 28, 2018 5:41 pm
Vensim version: DSS

Re: LP Solve Add-on

Post by rcalon »

Solved, I did not subscript the functions as separate equations.
Post Reply