RE: Ask for your help with use of APM MATLAB

[John Hedengren]

Deng,

 

There is some additional information on using conditional statements in APM models here:

 

http://apmonitor.com/me575/index.php/Main/LogicalConditions

 

Below is the code for your problem that you described. The example below directs has a solution with m[1:3] = 0, m[4:7] = 1, and m[8:10] = 0. You’ll notice that I needed to declare m as an integer variable with the int prefix. In the past, I’ve also found that it mostly returns an integer value even when m is not declared as an integer type.

 

 

 

 

Best regards,

 

John Hedengren

 

-----Original Message-----
From: shee...@sjtu.edu.cn [mailto:shee...@sjtu.edu.cn]
Sent: Monday, May 13, 2013 1:15 AM
To: john.he...@byu.edu
Subject: Ask for your help with use of APM MATLAB

 

Dear Prof. John Hedengren,

     Thanks so much for your work on APM. However, I meet a problem when building a MINLP problem now. I want get a solution for x1,x2..xN, which are all nonintegers, and m1,m2..mN are all integers. There exists a relationship between one pair of xi and mi, while xi > 10e-5, m1 equals to 1, otherwise, m1 equals to 0. I am a fresher for APM, I do not know how to describe it in .apm file. Would you please give me some tips or demos for such kind of problem? Thanks a lot for time.

 

Best wishes,

Deng Jian.

 

Bachelor

School of Microelectronics

Shanghai Jiao Tong University

800 Dongchuan Rd, Shanghai 200240, China