Get Future bar's value from previous bars

[ttodua]

I want to compare current bar's price with the last bar's price.

in indicator, I want somehting like this:

OnBarUpdate(){
    ...
    Print([COLOR="Red"]LastBarOfChart_CLOSE[/COLOR]  - CLOSE[0]);
    .....
}

I think I understand what i want to say. I want to know in advance, the last loaded bar's value.

As Chart is displayed only after State is DataLoaded, it means, that NT already knows all values of loaded bars on chart. So, there will be way to know all Bars' data in advance in OnBarUpdate().

Can you help me?

[NinjaTrader_Jim]

Hello TazoTodua,

Thanks for opening the thread.

Do you mean you want to compare the very first historical bar to the current bar that is iterating? This could easily be done by using CurrentBar as the index for the Price Series and compare it to the current index of the PriceSeries.

For example: Print(Close[CurrentBar] - Close[0]);

I am not sure what your goal is for you to look for bars data before it it iterates, but you could look into referencing the data from the Bars object itself with Bars.GetClose() Bars.Count and other methods/properties. These should be available after data loads.

Bars object - https://ninjatrader.com/support/help...en-us/bars.htm

Please let me know if you have any additional questions.

[ttodua]

No. Lets say, on chart, here is 500 bars (and DataLoaded happened you know).
so, in iteration (in OnBarUpdate), i want to compare current bar to the last bar on chart (i.e. 500th bar, which i most recent) price.

i think i've said it clearly.

in ThinkOrSwim it is possible to obtain next bar's values.

[NinjaTrader_Jim]

Hello TazoTodua,

My example statement would accomplish that task.

For your example, 500 bars loaded on a chart, Close[CurrentBar] would be that 500th bar (first bar on the chart, and Close[0] would be the last bar on the chart or the 0 bar.

CurrentBar iterates with each new bar, so Close[CurrentBar] will always be that first bar on the chart.

Please let me know if this is not what you are trying to do.

[gubbar924]

Are you looking for something like this?

It will loop through the Close prices of every candle and subtract the Close price of the current candle from each one and print that value.

//  first wait for everything to load or else we get the wrong value for CurrentBar
if (State == State.Realtime)
{
   for (int idx = 0; idx < CurrentBar; idx++)
    {
      double valDiff = Bars.GetClose(idx) - Bars.GetClose(CurrentBar);
      Print(valDiff);
    }
}

this keeps the last candle out of the loop and prevents an unnecessary subtraction of a value from itself

[ttodua]

Brilliant JIM! thanks!
Thanks also gubbar924,