From the Performance Report page in the manual:

Prediction error: Estimated error of the results in percent. This is an empirical value calculated from trade parameters that affect the result accuracy, such as the number of trades and the deviation of sample cycles.

Could we get some more information about this? How is it calculated? What practical purpose does it serve?

Is it the same thing as standard error (ie standard deviation of trade results in backtest/sqrt(number of trades in backtest) ??

Thanks!