Example usage for org.apache.commons.math3.optim.linear Relationship LEQ

Introduction

In this page you can find the example usage for org.apache.commons.math3.optim.linear Relationship LEQ.

Prototype

Relationship LEQ

To view the source code for org.apache.commons.math3.optim.linear Relationship LEQ.

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Document

Lesser than or equal relationship.

Usage

From source file:org.lightjason.agentspeak.action.builtin.TestCActionMathLinearprogram.java

/**
 * test solve maximum/*from   w  w w  .j av  a  2 s  .com*/
 */
@Test
public final void solvemaximize() {
    final List<ITerm> l_return = new ArrayList<>();
    final ImmutablePair<LinearObjectiveFunction, Collection<LinearConstraint>> l_linearprogrammax = new ImmutablePair<>(
            new LinearObjectiveFunction(new double[] { 3, 5 }, 0.0), new HashSet<LinearConstraint>());

    l_linearprogrammax.getRight().add(new LinearConstraint(new double[] { 2, 8 }, Relationship.LEQ, 13));
    l_linearprogrammax.getRight().add(new LinearConstraint(new double[] { 5, -1 }, Relationship.LEQ, 11));
    l_linearprogrammax.getRight().add(new LinearConstraint(new double[] { 1, 0 }, Relationship.GEQ, 0));
    l_linearprogrammax.getRight().add(new LinearConstraint(new double[] { 0, 1 }, Relationship.GEQ, 0));

    new CSolve().execute(false, IContext.EMPTYPLAN, Stream.of(l_linearprogrammax, "maximize", "non-negative")
            .map(CRawTerm::from).collect(Collectors.toList()), l_return);

    Assert.assertArrayEquals(l_return.stream().map(ITerm::raw).toArray(),
            Stream.of(12.333333333333332, 2, 2.4047619047619047, 1.0238095238095237).toArray());
}

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From source file:uk.ac.tgac.metaopt.external.Apache.java

protected Relationship convertRelationship(Constraint.Relation relation) {

    if (relation == Constraint.Relation.EQUAL) {
        return Relationship.EQ;
    } else if (relation == Constraint.Relation.GREATER_THAN_OR_EQUAL_TO) {
        return Relationship.GEQ;
    } else if (relation == Constraint.Relation.LESS_THAN_OR_EQUAL_TO) {
        return Relationship.LEQ;
    }/*  w  ww  . j  ava 2s.  co m*/

    throw new UnsupportedOperationException("Apache cannot handle this Relation: " + relation.toString());
}

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From source file:uk.ac.tgac.metaopt.external.Apache.java

protected void addDecisionVariables(Collection<LinearConstraint> constraints, Problem problem) {

    List<Variable> variables = problem.getVariables();

    // Add restriction constraint
    for (int i = 0; i < variables.size(); i++) {

        Variable var = variables.get(i);

        double[] coefficients = new double[variables.size()];

        for (int j = 0; j < variables.size(); j++) {

            coefficients[j] = i == j ? 1.0 : 0.0;
        }// w w  w .  java  2 s.c  om

        Bounds.BoundType boundType = var.getBounds().getBoundType();

        if (boundType == Bounds.BoundType.FREE) {
            // Do nothing in this case
        } else if (boundType == Bounds.BoundType.LOWER) {
            constraints.add(new LinearConstraint(coefficients, Relationship.GEQ, var.getBounds().getLower()));
        } else if (boundType == Bounds.BoundType.UPPER) {
            constraints.add(new LinearConstraint(coefficients, Relationship.LEQ, var.getBounds().getUpper()));
        } else if (boundType == Bounds.BoundType.DOUBLE) {
            constraints.add(new LinearConstraint(coefficients, Relationship.GEQ, var.getBounds().getLower()));
            constraints.add(new LinearConstraint(coefficients, Relationship.LEQ, var.getBounds().getUpper()));
        } else if (boundType == Bounds.BoundType.FIXED) {
            constraints.add(new LinearConstraint(coefficients, Relationship.EQ, var.getBounds().getLower()));
        } else {
            throw new IllegalArgumentException("Unknown bound type encountered: " + boundType.toString());
        }
    }
}

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