I need code for backtest which uses AVERAGE DIRECTIONAL INDEX(ADX) with DI+ and DI- crossovers

Algos, strategies, code
1
2

The sysntax of Wilder’s Directional Movement System
ADX(Periods),  is

DI+

DIP(14) > 60

DI-

DIN(14) < 60
3

Please expalin your condition in brief?

4

take a situation for yourself for which you can give better explaination and code it