Free margin in Forex is the amount of money that is not involved in any trade. You can use it to take more positions, however, that isn't all - as the free margin is the difference between equity and margin. If your open positions make you money, the more they achieve profit, the greater the equity you will have, so you will have more free margin as a result. There may be a situation when you have some open positions and also some pending orders simultaneously.
Type of forex trading account the forex robot is trading on – thus telling you if the forex robot listed within the table of results has a demo trading account statement or real trading account statement. Demo forex trading accounts can give different result to real forex trading accounts because of factors such as different broker spreads and brokers slippage. Usually the liquidity on a demo account would be artificial and thus the trades will usually be executed faster, this can also mean smaller spreads on demo accounts. However, demo accounts can still give a good idea on what to expect from a forex robots performance. It is usually recommended to use a true ECN forex broker with plenty of liquidity to ensure low spreads, low slippage and thus the best possible forex robot trading conditions. This can save you trading costs and improve trading performance.
In particular I would like to make the system a lot faster, since it will allow parameter searches to be carried out in a reasonable time. While Python is a great tool, it's one drawback is that it is relatively slow when compared to C/C++. Hence I will be carrying out a lot of profiling to try and improve the execution speed of both the backtest and the performance calculations.