"Tester" is a multifunctional window that allows to test strategies and optimize parameters of expert advisors. When being tested, the expert is passed on the modeled data one time what allows to estimate its profitability and effectiveness. For optimization purposes, the mechanical trading system is passed many times in order to find out such parameters of the expert at which its profitability is the highest.
Report the detailed testing report. Many indications of testing and effectiveness of experts can be found here: the amount of bars modeled, the total profit, the most profitable and unprofitable positions, the amount of profit and loss trades, etc.;
Journal a log where all actions and internal messages of the expert are recorded;
Optimization Results information about every pass, including inputs, profitability, drawdowns, and other data;
Optimization Graph the results of expert optimization as a graph. Besides each pass profitability, the amount of profit and loss trades is displayed in the graph.