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If the standard set of optimization parameters does do not suit you, you can create your own custom criteria for optimization.
There are two ways to create custom criteria for optimization:
#Write custom criteria in java on the '''Optimization Criteria''' tab of the '''Exhaustive Search Properties''' window or on the '''Algorithm-Specific Properties''' tab of the '''Genetic Algorith Properties''' window (see [[Performing Optimization]]); or:
#Create a custom signal using the [[SetCustomFitnessValue]] keyword in the PowerLanguage Editor specifying your custom criteria.
<p>
<div style="background-color: #E5F6FF;">Example: You want to optimize your signal by Sharpe RatioSharpeRatio. This parameter is not among the standard criteria.
One possible solution would be to create a function which calculates SharpeRatio in Power Language (see default SharpeRatio function) and use it as a [[SetCustomFitnessValue]] keyword parameter. See the '''!optimize by sharp ratio!''' default signal as an example. Such a signal should be applied to your chart with the signals that you want to optimize applied ''before '' performing optimization.
Make sure that you select the '''Custom Fitness Value''' from the list under the '''Standard Criteria''' section on the '''Optimization Criteria''' tab of the '''Exhaustive Search Properties''' window or on the '''Algorithm-Specific Properties''' tab of the '''Genetic Algorith Properties''' window (see [[Performing Optimization]]).
