Comparing current close to close 365 days ago

[boxing123]

HI all,

This is just an exercise where I'm trying to figure how to work with timings between bars, in both backtesting and live, and I'm stuck on backtesting.

I'd like to understand how to evaluate daily bar closes between 2 periods, for instance:

if ( Close(365) > Close(0) )

When I run a backtest on ES 09-23, I get an index out of range error.

So I tried loading another data set.with 400 bars of history (I think)...

else if (State == State.Configure) { AddDataSeries("ES 09-23",new BarsPeriod { BarsPeriodType = BarsPeriodType.Day, Value = 1 },400,"US Equities RTH" , null); }

Then with this evaluation

if ( Close[0]>Closes[1][365] )

still getting the index out of range on the backtest.

How should this be implemented, any help greatly appreciated.

Regards

[NinjaTrader_Emily]

Hello boxing123,

Thank you for your post and welcome to the NinjaTrader forum community!

A new series does not need to be added in this case. I suggest reviewing the following page in the help guide about making sure you have enough bars in the data series you are accessing:

• https://ninjatrader.com/support/help...nough_bars.htm

You should be able to prevent this error by doing a CurrentBar check. For example, if you want to access the Close price from 365 bars ago and compare that to the current bar's Close price, you could use a check such as the following:

if (CurrentBar < 365)
return;

if (Close[365] > Close[0])
// do something

Please let us know if we may be of further assistance.