Class SimplexSolver
- java.lang.Object
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- org.apache.commons.math3.optimization.linear.AbstractLinearOptimizer
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- org.apache.commons.math3.optimization.linear.SimplexSolver
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- All Implemented Interfaces:
LinearOptimizer
@Deprecated public class SimplexSolver extends AbstractLinearOptimizer
Deprecated.As of 3.1 (to be removed in 4.0).Solves a linear problem using the Two-Phase Simplex Method.- Since:
- 2.0
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Field Summary
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Fields inherited from class org.apache.commons.math3.optimization.linear.AbstractLinearOptimizer
DEFAULT_MAX_ITERATIONS
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Constructor Summary
Constructors Constructor Description SimplexSolver()
Deprecated.Build a simplex solver with default settings.SimplexSolver(double epsilon, int maxUlps)
Deprecated.Build a simplex solver with a specified accepted amount of error
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description protected void
doIteration(org.apache.commons.math3.optimization.linear.SimplexTableau tableau)
Deprecated.Runs one iteration of the Simplex method on the given model.PointValuePair
doOptimize()
Deprecated.Perform the bulk of optimization algorithm.protected void
solvePhase1(org.apache.commons.math3.optimization.linear.SimplexTableau tableau)
Deprecated.Solves Phase 1 of the Simplex method.-
Methods inherited from class org.apache.commons.math3.optimization.linear.AbstractLinearOptimizer
getConstraints, getFunction, getGoalType, getIterations, getMaxIterations, incrementIterationsCounter, optimize, restrictToNonNegative, setMaxIterations
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Constructor Detail
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SimplexSolver
public SimplexSolver()
Deprecated.Build a simplex solver with default settings.
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SimplexSolver
public SimplexSolver(double epsilon, int maxUlps)
Deprecated.Build a simplex solver with a specified accepted amount of error- Parameters:
epsilon
- the amount of error to accept for algorithm convergencemaxUlps
- amount of error to accept in floating point comparisons
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Method Detail
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doIteration
protected void doIteration(org.apache.commons.math3.optimization.linear.SimplexTableau tableau) throws MaxCountExceededException, UnboundedSolutionException
Deprecated.Runs one iteration of the Simplex method on the given model.- Parameters:
tableau
- simple tableau for the problem- Throws:
MaxCountExceededException
- if the maximal iteration count has been exceededUnboundedSolutionException
- if the model is found not to have a bounded solution
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solvePhase1
protected void solvePhase1(org.apache.commons.math3.optimization.linear.SimplexTableau tableau) throws MaxCountExceededException, UnboundedSolutionException, NoFeasibleSolutionException
Deprecated.Solves Phase 1 of the Simplex method.- Parameters:
tableau
- simple tableau for the problem- Throws:
MaxCountExceededException
- if the maximal iteration count has been exceededUnboundedSolutionException
- if the model is found not to have a bounded solutionNoFeasibleSolutionException
- if there is no feasible solution
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doOptimize
public PointValuePair doOptimize() throws MaxCountExceededException, UnboundedSolutionException, NoFeasibleSolutionException
Deprecated.Perform the bulk of optimization algorithm.- Specified by:
doOptimize
in classAbstractLinearOptimizer
- Returns:
- the point/value pair giving the optimal value for objective function
- Throws:
MaxCountExceededException
UnboundedSolutionException
NoFeasibleSolutionException
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