Optimizer not optimizing all parameters

[NeuralFX]

Hi I am trying to optimize a Stragety that I have written, Im not really interested in the stragety being succesful in terms of trading logic, I have just developed a dynamic Lot sizing component that will allow trades a lot size based on a stop loss established at a certain % of the ATR and available balance in the account.

I have run the optimization, changing the parameters for the PrecentATR to a fairly wide range but the optimizer only seems to be trailing four combinations, and then stopping. It also produces very different results with each attempt at optimizing. This is the same whether I use the genetic or default optimizer.

What is really odd is that if I do a regular back test, and manual change the PercentATR Parameters in the properties pane, the whole thing works correctly, even when trailing parameters that are well and truly outside the range I set for the optimizer. The results are also consistent in the Backtest but not the optimizer. I have included a screen shot of the report after running the optimzer so you can see it only does four runs, even though there are a 1000 odd combinations possible. I have also included the strategy code so you see there inst anything odd or random in the code.

Thanks in advance

[NinjaTrader_Matthew]

Thank you for posting this detailed info.

When I run this strategy I start getting OnBarUpdate errors on the log tab of the Control Center. Can you clarify if you see the same?

[NeuralFX]

Thanks for the reply. I found the error in code. Basically because I was using File.AppendText to write to my own log, I think was cause concurrency issues, I read somewhere that back testing is multi thread, well I guess multiple threads trying to write to same file cause an exception that I didn't handle. I removed that piece if code and everything worked just fine. Thanks anyway though.