scip_add_var

Provides an R interface to SCIP (Solving Constraint Integer Programs), a framework for mixed-integer
programming (MIP), mixed-integer nonlinear programming (MINLP), and constraint integer programming
(2025, <doi:10.48550/arXiv.2511.18580>). Supports linear, quadratic, SOS, indicator, and knapsack
constraints with continuous, binary, and integer variables. Includes a one-shot solver interface
and a model-building API for incremental problem construction.

Balasubramanian Narasimhan

scip

Interface to the SCIP Optimization Suite

SCIP Optimization Suite Authors 

scip_add_var function

<dl><dt>model</dt>
<dd>A SCIP model (external pointer from <code>scip_model</code>).</dd>
<dt>obj</dt>
<dd>Numeric; objective coefficient.</dd>
<dt>lb</dt>
<dd>Numeric; lower bound. Default <code>0</code>.</dd>
<dt>ub</dt>
<dd>Numeric; upper bound. Default <code>Inf</code>.</dd>
<dt>vtype</dt>
<dd>Character; variable type: <code>"C"</code> (continuous),
<code>"B"</code> (binary), or <code>"I"</code> (integer). Default <code>"C"</code>.</dd>
<dt>name</dt>
<dd>Character; variable name. Default auto-generated.</dd></dl>

Arguments

Add a variable to a SCIP model — scip_add_var

<dl>

<dt>model</dt>
<dd>A SCIP model (external pointer from <code>scip_model</code>).</dd>


<dt>obj</dt>
<dd>Numeric; objective coefficient.</dd>


<dt>lb</dt>
<dd>Numeric; lower bound. Default <code>0</code>.</dd>


<dt>ub</dt>
<dd>Numeric; upper bound. Default <code>Inf</code>.</dd>


<dt>vtype</dt>
<dd>Character; variable type: <code>"C"</code> (continuous),
<code>"B"</code> (binary), or <code>"I"</code> (integer). Default <code>"C"</code>.</dd>


<dt>name</dt>
<dd>Character; variable name. Default auto-generated.</dd>

</dl>

scip_add_var: Add a variable to a SCIP model

Description

Usage

Value

Arguments