BollingerBandScan for -2.0

[onemantrading]

Hello all, on the BollingerBand Scan:

BollingerBandsCrossover("length" = 20, "std deviation" = 2.0) is true

Can someone share the code so it also looks for the opposite -2.0

It would be of benefit to have both in one scan or separate is fine too.

Thank You!

 

[rad14733]

@onemantrading

Had you reviewed the code of the licensed Study you would have seen that the following is what you are looking for... You can't break anything by experimenting in an effort to learn...

BollingerBandsCrossover("length" = 20, "std deviation" = -2.0, "crossingType" = below) is true

 

[onemantrading]

That looks about right and how I thought about it. But I figured I’d ask anyway in my effort to learn. I’d hate to use something that isn’t accurate for my style of trading.
Thanks for your assist. I do appreciate it.