I have this formula set to look for a volume bar that is 1.95 times larger than the previous 21 bars on a 15 minute timeframe. 

V *1.95 > AVGV21

What I generally see is a bar with that vol criteria printed 3 - 4  bars ago, but what I would like the scan to identify is a bar when the 13th min closes. Hope that makes sense.

What do I need to modify?  

Thanks

Your current formula checks for the volume of the current bar times 1.95 to be greater than the average volume of the most recent 21 bars including itself. If you wanted to change that so it was the previous 21 bars instead, it would become the following.

V > 1.95 * AVGV21.1

If you want to wait until the next bar opens for this to return true, you would add 1 to the bars ago parameters.

V1 > 1.95 * AVGV21.2

If you want to check either of the two most recent bars to get the earliest possible warning but still catch things once the next bar has opened.

CountTrue(V > 1.95 * AVGV21.1, 2) > 0

Thank you Bruce

Bruce,

A follow up question; so if I wanted to apply this to price, would this be the correct formula?

CountTrue(o-c) > 1.95 * AVGV21.1, 2) > 0

Thanks

I am not quite sure what you are trying to do. Are you looking for the range of the body to be greater than the average range?

CountTrue(ABS(O - C) > 1.95 * AVG(ABS(O1 - C1), 21), 2) > 0

Yes, thanks

If I wanted a specific scan date do I just add '12/31/2017' to EZ Scan if that was individual date I wanted

and this checks momentum from 12/31/2017    100 * (C / C'12/31/2017'- 1)

If you are using a daily or longer time frame, yes. Dates and times really don't work in intraday time frames (well dates can kind of work for some things, but behave differently in say version 12 and version 18 and usually don't do what you might expect).