I am trying to use scanner in PI, to scan for a gap up opening. The code used is LOW > REF(HIGH, 1). When I am running the code , It is showing alert generated at 9:15AM , for all the three symbols added , while only TATASTEEL is having gap up opening on 23/12/2015. Please clarify on this , why all three are showing alert generated, and why TATASTEEL is green in Volume column. I am attaching the screenshot for reference.
As per the above used script LOW > REF(HIGH, 1) means if the low of the current candle is greater than previous candle the alert generate, so, if the condition or pattern matches it gives alert,