"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.
The window can be called by the "View Strategy Tester" menu command, by pressing of accelerating keys of Ctrl+R, or the button of the "Standard" toolbar.
There are several tabs in this window:
As in the "Terminal" window, some tabs of the "Tester" window are hidden if they are empty. So, initially, only the tabs of "Settings" and "Journal" can be seen in this window. The tabs of "Results", "Graph", and "Report", will only appear after an expert has been tested. After it has also been optimized, the tabs of "Optimization Results" and "Optimization Graph" will appear. More detailed information about testing experts can be found in the section of the same name.