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How to access EMA value of a bar inside OnRender()?

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    How to access EMA value of a bar inside OnRender()?

    Hi! I have a NT8 indicator which plots lines under a clicked bar. In the onRender method it gets the clicked bar index with:

    barIdx = ChartBars.GetBarIdxByX(chartControl, clickPixelX); <- This works already


    How do I get the EMA(10) value of this clicked bar?

    I have my EMA instancied correctly

    private ema EMA;

    else if (State == State.Historical)
    {
    ema= EMA(10);


    but when I call

    ema[barIdx] I get an out-of-bound exception.

    What am I doing wrong? Thanks!

    #2
    Hello Orion1504,

    Thank you for your inquiry.

    Unlike market data events and strategy order related events, there is no guarantee that the barsAgo indexer used for Series<T> objects are in sync with the current bars in progress. As a result, you should favor using an absolute index method to look up values. In this case, you could use GetValueAt():

    https://ninjatrader.com/support/help...getvalueat.htm

    Please let us know if we may be of further assistance to you.
    Kate W.NinjaTrader Customer Service

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