Ya need polynomial regression analysis.
TradersStudio let's you design trading system which can get filtered with equity curve feedback. TradersStudio contains three backtesters. This is how you can filter a system using the equity curve of that strategy.
First of all I do have profitable systems. My systems which I designed currently manage about 150 million at Tuttle Wealth. Another question is can you test these strategies, and the answer is yes with TradersStudio.But does one produce profits ? That is the question.
Losers are worse than useless. If you can show that your systems produce regular profits then interest would grow exponentially.