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<body class='hmmessage'><div dir='ltr'><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px;">I found bicriteria.c file in Examples. I tried running with the data set and I got several solutions as I am supposed to get. </div><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px;">However, I am not sure whether I got a correct result.</div><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px;">These are some parts of bicriteria.c file</div><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px;"><div>#include "symphony.h"</div><div><br></div><div>int main(int argc, char **argv)</div><div>{</div><div><br></div><div> sym_environment *env = sym_open_environment();</div><div> sym_parse_command_line(env, argc, argv);</div><div> sym_load_problem(env);</div><div><br></div><div> sym_set_obj2_coeff(env, 1, -1);</div><div><br></div><div> sym_mc_solve(env);</div><div><br></div><div> sym_close_environment(env);</div><div><br></div><div> return(0);</div><div><br></div><div>}</div><div><br></div><div>#endif</div></div><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px;"><br></div><div style="line-height: 21px; color: rgb(68, 68, 68); font-size: 15px;">Does anyone know what <span style="line-height: 22px; font-size: 12pt;">sym_set_obj2_coeff(env, 1, -1) means? When should I use 1 or -1?</span></div><div style="color: rgb(68, 68, 68);"><span style="line-height: 22px;">My sample data is a minimization problem.</span></div><div style="color: rgb(68, 68, 68);"><span style="line-height: 22px;"><br></span></div><div style="color: rgb(68, 68, 68);"><span style="line-height: 22px;">Thank you,</span></div><div style="color: rgb(68, 68, 68);"><span style="line-height: 22px;">Papis</span></div><br><div>> Date: Fri, 13 Sep 2013 23:29:29 -0500<br>> From: hennebry@web.cs.ndsu.nodak.edu<br>> To: papis_31@hotmail.com<br>> CC: symphony@list.coin-or.org<br>> Subject: RE: [Symphony] biobjective problems<br>> <br>> On Sat, 14 Sep 2013, Papis Wongchaisuwat wrote:<br>> <br>> > I would like to run bi-objective Set cover and Set pack problems. Attached files are some examples that I want to run. MCKP and these problems are quite different. I don't know how to apply MCKP or either use any other ways to run these problems.<br>> <br>> From reading the manual,<br>> I gather one can call sym_explicit_load_problem( ... )<br>> and follow it by calling sym_mc_solve( ... ) .<br>> Is there a reason that you cannot do that?<br>> <br>> -- <br>> Michael hennebry@web.cs.ndsu.NoDak.edu<br>> "On Monday, I'm gonna have to tell my kindergarten class,<br>> whom I teach not to run with scissors,<br>> that my fiance ran me through with a broadsword." -- Lily<br></div> </div></body>
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