Scanner in Pi is not working properly?

Algos, strategies, code
1

I wanted to make code for close crossing up/below Bollinger Band MA. for which i tried this code with 4 scrips. Bankbaroda, bhel, tatasteel & ongc.

CLOSE > BBM(CLOSE,14,2,EXPONENTIAL)

it gave me wrong signal (in case of BHEL & TATASTEEL) even though CLOSE was not  anywhere near BBM. 





Is my code OK for what I am trying to find. in fact i wanted to code for crossover of CLOSE up/below BBM. but the script is showing error. Even the script(not crossover but Bollinger Band Strategy) as it is taken from EA is also showing error. Why it is so?

2

you have referred middle line of the bolinger band, BBM and given > symbol as it says if close is greater than BBM

​verify your condition

3

You can write to [email protected] as I believe you missed on the point how to read the scanner.

4

but close was not above BBM, why got a signal?

5

signal will generate only if the pattern matches… backtest once again with some other script and check results…if still persist you can write email to [email protected]