OptimizationMethod.Iterations is always 1

October 2nd, 2011, 08:10 AM

So I have a related question I am trying to solve.

With my strategy I am exporting trade records and performance metrics automatically to two csv files. I have it setup for multi-threaded support and it is works great running in the optimizer. To support ppart of this, I am using some "static" variables for the output file names. These file names are automatically calculated based on instrument and time etc.

The issue I have is that because of the use of statics, the filename does not reset for each new optimization run so I have to manually "move them out of the way".

What I was hoping to do was detect when an optimization was being performed and then using the expected number of iterations (using the base.OptimizationMethod.Iterations) track until I am complete and then reset the static file name.

I would have thought that this OptimizationMethod.iterations property (at least looking at the defaultOptimization code should represent the number of iterations that are required to be performed (i.e. a total count), but when I look at this variable it is always one from within a strategy instances.

Anyone have any ideas on if I am being boneheaded or is there something else I am do instead??

October 4th, 2011, 12:04 AM

I can't offer much help, other than to point you towards some other extensive work with optimizers:

NinjaTrader Genetic Optimizer

Latest version (1.12), with NT7 support, is here (

Hi All,

I've created a new Genetic Strategy Optimizer based loosely on Peter's GAOptimizer.

Installation Instructions:
- download the .ZIP file from the download link (above). NOTE: ignore …

Now that code is for 6.5, and is useless for 7 in terms that it won't work. But, you could still analyze the code and possibly learn a few things to do with using your own optimizer.

Mike

October 5th, 2011, 08:56 AM

Thanks Mike,

I emailed NT also, but it does not seem like there is an easy method inside a Strategy. I could extend/write my own optimizer, which is likely the easiest at stage.

In the interim what I have done is created a "static" that tracks whether a "file name reset" is required, and then just set that to the true in the UI. This works fine, the only issue being that if you forget, you add/overwrite the last files.

OptimizationMethod.Iterations is always 1

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OptimizationMethod.Iterations is always 1