Strategy Tester Period giving different P&L -- Why


Hi all, 

I have a sample EA with the following OnTick() logic getting a Custom (or any build in indicator like iMA(..) ) with PERIOD_D1. 

However, running Strategy Tester with Period set to "Daily" vs "M1" or other periods gives DIFFERENT Trading Backtest results. (I somehow felt that we should stick to "Daily" in the Strategy BackTester")

Can anyone explain why this is so?

int OnInit()



   controlPanel_ComboIndicator = iCustom(_Symbol,PERIOD_D1,"TALibrary\\iComboIndicator", 0, PRICE_CLOSE); // Trading 15-minutes windows


The Fundamentals of Testing in MetaTrader 5
The Fundamentals of Testing in MetaTrader 5
The idea of ​​automated trading is appealing by the fact that the trading robot can work non-stop for 24 hours a day, seven days a week. The robot does not get tired, doubtful or scared, it's is totally free from any psychological problems. It is sufficient enough to clearly formalize the trading rules and implement them in the algorithms, and...