Codinf for bollinger bandwidth

Algos, strategies, code
1

code required to set alerts

buy : bollinger bandwidth less than 6

sell : bollinger bandwidth great than 15

code required :

buy : ema 9 cuts 20

sell : within 3 percent up or 4 percent stop loss ( i don’t need a simultaneous short trade either )

last question :during backtest when we buy and sell automatically another short selling trade is commenced

how do we a back test only a short and short covering trade

tried using short and exit short trade it says there should be a buy and sell

2

for setting alerts as per your condition

Buy Script:

BBT(CLOSE, 20, 2, EXPONENTIAL) < 6

Sell Script:

BBB(CLOSE, 20, 2, EXPONENTIAL) > 15

for ema crossover

Buy Script:

CROSSOVER(EMA(CLOSE,9),EMA(CLOSE,20))

it is not possible to code based on percentage

for back testing you require atleast one buy and sell

3

Is this correct code for Bollinger Bandwidth?

4

Aren’t BBT and BBB for top and bottom of Bollinger bands? Not for bandwidth?

5

I think it’s for Bollinger bands not bandwidth

6

yes ,you are right. shouldn’t rely fully on Pi’s tradescript.must use some other programming language or software