org.omegahat.Numerics.Optimizers
Interface OptimizerIterator

All Known Implementing Classes:

BasicOptimizer, OptimizerBasic

public interface OptimizerIterator

Field Summary

static int	CONTINUE The static values are the standard predefined states for the optimization.
static int	CONVERGED Convergence, by some criterion (1).
static int	EXCEPTION An exception was caught during the iteration (-3).
static int	NUMERIC_PROBLEM Some numeric problem encountered in the optimization (-2).
static int	TOO_MANY_STEPS Too many iterations, or some other iterative count exceeded (-1).

Method Summary

boolean	continueIteration(OptimizerAlgorithm opt, ModelPoint values) Should the iteration continue?
int	getState() The state of the optimizer.
int	setState(int code)

Field Detail

CONTINUE

public static final int CONTINUE

The static values are the standard predefined states for the optimization.

The CONTINUE state (0) means to continue the iteration. Any other value causes iteration to terminate. By convention, negative values are failure, positive values successful convergence (but nothing in the basic code depends on this distinction).

CONVERGED

public static final int CONVERGED

Convergence, by some criterion (1).

TOO_MANY_STEPS

public static final int TOO_MANY_STEPS

Too many iterations, or some other iterative count exceeded (-1).

NUMERIC_PROBLEM

public static final int NUMERIC_PROBLEM

Some numeric problem encountered in the optimization (-2).

EXCEPTION

public static final int EXCEPTION

An exception was caught during the iteration (-3).

Method Detail

getState

public int getState()

The state of the optimizer. Should be one of the constants defined in this interface.

setState

public int setState(int code)

continueIteration

public boolean continueIteration(OptimizerAlgorithm opt,
                                 ModelPoint values)

Should the iteration continue?