Help me code this strategy?

Algos, strategies, code
1

EMA – 9 and 21.

RSI – 20 BUY

and RSI - 80 SELL

2

As per the above query your condition is not clear , you can customize according to requirement

Buy Script:

CROSSOVER(EMA(CLOSE,9),EMA(CLOSE,21)) AND RSI(CLOSE,14) > 20


 
Sell Script:

CROSSOVER(EMA(CLOSE,21),EMA(CLOSE,9)) AND RSI(CLOSE,14) < 80


 

3

please brief your condition clearly…