I'm a c++ programmer but I have some difficults to understand indicators relations with MT4 equivalents.
For example in MT4 I can calculate the last high fractal with this function:

UpFractal = iFractals(Symbol(), tf, MODE_UPPER, 3);

in zorro the function is:

FractalHigh(var* Data, int TimePeriod)

I have tried this:

UpFractal = FractalHigh(series(price()),5)

but I don't understand the correlation with the two functions; in the FractalHigh function what TimePeriod means?

Thanks in advance and
congratulations with the excellent work with zorro.