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r956 r966 1 <html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Some Useful Set and Get Methods</title><meta name="generator" content="DocBook XSL Stylesheets V1.6 5.1"><link rel="home" href="index.html" title="CLP User Manual"><link rel="up" href="ch02.html" title="Chapter 2.1 <html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Some Useful Set and Get Methods</title><meta name="generator" content="DocBook XSL Stylesheets V1.66.1"><link rel="start" href="index.html" title="CLP User Guide"><link rel="up" href="ch02.html" title="Chapter 2. 2 2 Basic Model Classes 3 "><link rel="prev ious" href="ch02s05.html" title="Tolerances"><link rel="next" href="ch02s07.html" title="3 "><link rel="prev" href="ch02s05.html" title="Tolerances"><link rel="next" href="ch02s07.html" title=" 4 4 Simplex-specific Methods 5 5 "></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Some Useful Set and Get Methods</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch02s05.html">Prev</a> </td><th width="60%" align="center">Chapter 2. 6 6 Basic Model Classes 7 </th><td width="20%" align="right"> <a accesskey="n" href="ch02s07.html">Next</a></td></tr></table><hr></div><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name=" id4758484"></a>Some Useful Set and Get Methods</h2></div></div><div></div></div><div class="table"><a name="id4758490"></a><p class="title"><b>Table 2.2. Some Useful Set and Get Methods</b></p><table summary="Some Useful Set and Get Methods" border="0"><colgroup><col><col></colgroup><thead><tr><th>7 </th><td width="20%" align="right"> <a accesskey="n" href="ch02s07.html">Next</a></td></tr></table><hr></div><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="setsandgets"></a>Some Useful Set and Get Methods</h2></div></div></div><div class="table"><a name="id4769146"></a><p class="title"><b>Table 2.2. Some Useful Set and Get Methods</b></p><table summary="Some Useful Set and Get Methods" border="0"><colgroup><col><col></colgroup><thead><tr><th> 8 8 Method(s) 9 9 </th><th> 10 10 Description 11 </th></tr></thead><tbody><tr><td align="left" valign="top"><tt class="function">setMaximumIterations(int value)</tt><br><tt class="function">int maximumIterations()</tt><br><tt class="function">setMaximumSeconds(double value)</tt><br><tt class="function">double maximumIterations()</tt></td><td align="left" valign="top"> 11 </th></tr></thead><tbody><tr><td align="left" valign="top"> 12 <tt class="function">setMaximumIterations(int value)</tt><br> 13 <tt class="function">int maximumIterations()</tt><br> 14 <tt class="function">setMaximumSeconds(double value)</tt><br> 15 <tt class="function">double maximumIterations()</tt> 16 </td><td align="left" valign="top"> 12 17 These methods tell CLP to stop after a given number of iterations or 13 18 seconds (and returns these values). 14 </td></tr><tr><td align="left" valign="top"><tt class="function">double objectiveValue()</tt></td><td align="left" valign="top"> 19 </td></tr><tr><td align="left" valign="top"> 20 <tt class="function">double objectiveValue()</tt> 21 </td><td align="left" valign="top"> 15 22 This method returns the objective value. 16 </td></tr><tr><td align="left" valign="top"><tt class="function">const double * getObjCoefficients()</tt><br><tt class="function">double * objective()</tt></td><td align="left" valign="top"> 23 </td></tr><tr><td align="left" valign="top"> 24 <tt class="function">const double * getObjCoefficients()</tt><br> 25 <tt class="function">double * objective()</tt> 26 </td><td align="left" valign="top"> 17 27 These methods return the objective coefficients. 18 </td></tr><tr><td align="left" valign="top"><tt class="function">const double * getRowLower()</tt><br><tt class="function">double * rowLower()</tt><br><tt class="function">const double * getRowUpper()</tt><br><tt class="function">double * rowUpper()</tt><br><tt class="function">const double * getColLower()</tt><br><tt class="function">double * columnLower()</tt><br><tt class="function">const double * getColUpper()</tt><br><tt class="function">double * columnUpper()</tt></td><td align="left" valign="top"> 28 </td></tr><tr><td align="left" valign="top"> 29 <tt class="function">const double * getRowLower()</tt><br> 30 <tt class="function">double * rowLower()</tt><br> 31 <tt class="function">const double * getRowUpper()</tt><br> 32 <tt class="function">double * rowUpper()</tt><br> 33 <tt class="function">const double * getColLower()</tt><br> 34 <tt class="function">double * columnLower()</tt><br> 35 <tt class="function">const double * getColUpper()</tt><br> 36 <tt class="function">double * columnUpper()</tt> 37 </td><td align="left" valign="top"> 19 38 These methods give lower and upper bounds on row and column activities. 20 </td></tr><tr><td align="left" valign="top"><tt class="function">double * infeasibilityRay()</tt><br><tt class="function">double * unboundedRay()</tt></td><td align="left" valign="top"> 39 </td></tr><tr><td align="left" valign="top"> 40 <tt class="function">double * infeasibilityRay()</tt><br> 41 <tt class="function">double * unboundedRay()</tt> 42 </td><td align="left" valign="top"> 21 43 If the problem was primal or dual infeasible, these methods will give a 22 44 pointer to a ray proving infeasibility. 23 </td></tr><tr><td align="left" valign="top"><tt class="function">CoinPackMatrix * matrix()</tt></td><td align="left" valign="top"> 45 </td></tr><tr><td align="left" valign="top"> 46 <tt class="function">CoinPackMatrix * matrix()</tt> 47 </td><td align="left" valign="top"> 24 48 There are more options as the user has great flexibility in how the problem 25 49 matrix is stored, but the default matrix class is … … 28 52 So we have that this method returns a pointer to a 29 53 <tt class="classname">CoinPackedMatrix</tt> which can be further manipulated. 30 </td></tr><tr><td align="left" valign="top"><tt class="function">CoinBigIndex getNumElements()</tt><sup>[<a name="id4758792" href="#ftn.id4758792">a</a>]</sup></td><td align="left" valign="top"> 54 </td></tr><tr><td align="left" valign="top"> 55 <tt class="function">CoinBigIndex getNumElements()</tt> 56 <sup>[<a name="id4769448" href="#ftn.id4769448">a</a>]</sup> 57 </td><td align="left" valign="top"> 31 58 Returns the number of elements in the problem matrix. 32 </td></tr><tr><td align="left" valign="top"><tt class="function">void setOptimizationDirection(double value)</tt><br><tt class="function">double optimizationDirection()</tt></td><td align="left" valign="top"> 59 </td></tr><tr><td align="left" valign="top"> 60 <tt class="function">void setOptimizationDirection(double value)</tt><br> 61 <tt class="function">double optimizationDirection()</tt> 62 </td><td align="left" valign="top"> 33 63 These methods set and get the objective sense. The parameter 34 64 <i class="parameter"><tt>value</tt></i> should be +1 to minimize, -1 to maximize, 35 65 and 0 to ignore. 36 </td></tr></tbody><tbody class="footnotes"><tr><td colspan="2"><div class="footnote"><p><sup>[<a name="ftn.id47 58792" href="#id4758792">a</a>] </sup>66 </td></tr></tbody><tbody class="footnotes"><tr><td colspan="2"><div class="footnote"><p><sup>[<a name="ftn.id4769448" href="#id4769448">a</a>] </sup> 37 67 <span class="type">CoinBigIndex</span> is a <tt class="function">typedef</tt> which in 38 68 most cases is the same as <span class="type">int</span>.
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