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<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>Hi All,</span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>I am wondering how to construct a MIP problem by using
constraint matrix. I have done the following procedure to create a MIP problem,
</span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=IT style='font-size:9.0pt;
font-family:Arial'> si->loadProblem(*matrix, NULL, col_ub,
NULL, sense, rhs, NULL);</span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=IT style='font-size:9.0pt;
font-family:Arial'> si->setInteger(ctype, n_cols);</span></font></p>
<p class=MsoNormal style='text-indent:18.0pt'><font size=1 face=Arial><span
lang=EN-US style='font-size:9.0pt;font-family:Arial'>si->writeMps("problem");</span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>However, the column type show in
“problem.mps” is still continuous. But after invoke the branchAndBound(),
the column type is changed to integer. Is it possible to obtain an integer
model before invoking the B&B?</span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>Thanks.</span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>Cheers,</span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>Spencer</span></font></p>
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