CostFunction (StochasticPetriNets)

All Known Implementing Classes:

MarkingBasedSelectionWeightCostFunction
```
public interface CostFunction
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`double`	`getCost(double[] theta)`	returns the cost for a current assignment to the parameter vector theta.
`double`	`getPartialDerivation(double[] theta, int i)`	returns the partial derivation of the i-th index of the function

- Method Detail
  - getCost
```
double getCost(double[] theta)
```
    returns the cost for a current assignment to the parameter vector theta.
    
    Parameters:
    
    theta - double[] the parameter vector
    
    Returns:
    
    the cost for the current assignment of the vector.
  - getPartialDerivation
```
double getPartialDerivation(double[] theta,
                            int i)
```
    returns the partial derivation of the i-th index of the function
    
    Parameters:
    
    theta - the weight vector
    
    index - the index of the weight, of which the derivative is to be returned.
    
    Returns:
    
    slope of the curve in the dimension i (value of the partial derivation in the i-th dimension)