reference a volume at the same time 5 days ago

[roland_nt]

I understand that volume[1] references the volume of the bar previous to CurrentBar. What subscript would I use to reference the volume of a bar that had the same hour/minute time value but exactly 4 trading days ago.
For example if the CurrentBar was occurring 10:15 AM on Tuesday for a 1 minute chart, what subscript would reference exactly the volume for the one minute bar of 10:15 AM last Wednesday (the prior week)?
Or more generally, how do I derive/detect the bar value for a specified time in the past?
Thanks to all you geniuses who will answer this.

[NinjaTrader_Ben]

Hello,

This link uses time references, which will help:
http://www.ninjatrader-support2.com/...ead.php?t=3226

One way to do it is:
for (int i = 0; i < my_barsback; i++)
{
if(my_time == ToTime(Time[i]))
{
my_vol = Volume[i];
break;
}
}


This is untested, so test it.
Or if you know how many bars back you don't need a loop.

[roland_nt]

good start

Thanks Ben.
I think this is just what I needed. Cheers.

[NinjaTrader_Ben]

Hello,

I'm not sure why I didn't go this way, but this is easier than looping:

http://www.ninjatrader-support.com/HelpGuideV6/GetBar.html

Use GetBar(). Sorry about that!