SUM() but not from position [0]

[tinkerz]

I would like to Sum a period, but starting at a delayed period

So not
Calc= SUM(close,5)
Which is the sum of the closes from 0 to bars ago 4

would this mean
Calc= SUM(close,5)[10]

that I would sum closes from 9 bars ago to 14?

is that correct?

[borland]

It's some what confusing be cause [0] is the current bar. The number between the bracket is an offset, so [10] is 10 bars ago. If you consider [0] as bar 1, then [10] is bar 11.

But, look up variable CurrentBar and you'll see that NT counts bars from left to right. But offsets are right to left.

So,

double Calc = SUM(Close,5)[10]

is sum of closing prices between 15 and 10 barsAgo.

[NinjaTrader_Austin]

tinkerz, borland is correct. You might want to check into the index values though because the indexes start at 0, so a barsAgo value of 9 would be 9 bars back from the current bar, which is actually 10 bars ago.