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No plot is shown in my new indicator

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    No plot is shown in my new indicator

    Hello Everybody,

    I am new in ninjatrader and I want to create a new indicator just to practice. I am using NT7. After the automatic generation of the source code through the wizard, I have modified the "OnBarUpdate" function as follow.

    protected override void OnBarUpdate()
    {
    // Use this method for calculating your indicator values. Assign a value to each
    // plot below by replacing 'Close[0]' with your own formula.
    Plot0.Set(Close[1]);
    }

    Unfortunately I don't get any plot on my chart. But if I write "Close[0]" instead of "Close[1]" the plot is shown properly.

    Does anyone have an idea what the problem is?

    Thanks in advance.

    Francisse

    #2
    Hello Francisse,

    Likely there is an error occuring that you can see in the Log tab of the Control Center.

    On the very first bar there will be no bar 1 bar ago. This causes an index error as an index that does not exist is being called.

    Try adding:

    if (CurrentBar < 1)
    return;

    to the beginning of OnBarUpdate. This will prevent the script processing until the second bar when there will be a bar 1 bar ago (the first bar).
    Chelsea B.NinjaTrader Customer Service

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