Day ago

[Gibranes]

Hello: I draw on the chart the value of the last variable of an indicator with Draw.TextFixed(this, "AVE", avg.ToString().........., but I want it to be the previous one in this daily chart case.

The variable is avg = dynAverage[0];

How do I get the previous value?

[NinjaTrader_Emily]

Hello Gibranes,

Thank you for your post.

I see that you are drawing avg.ToString(). Since this is how avg is calculated for the current value:
avg = dynAverage[0];

To get the previous value, you would use a barsAgo index of 1:
dynAverage[1]

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

[Gibranes]

If I set a value of 1 the indicator is not visible

protected override void OnBarUpdate()
        {
            avg = dynAverage[0];
            offset = stdDevNumber * dynStdDev [0];
            PriceLine[0] = dynPrice[0];
            SignalLine[0] = dynSignal[0];
            Average[0] = avg;
            Upper[0] = avg + offset;
            Lower[0] = avg - offset;

                        valordiaanerior = Average[1]; // NOT WORK
                        
                        valordiaanerior = Average[0]; //  WORK

            Draw.TextFixed(this, "AVE", valordiaanerior.ToString(), TextPosition.BottomLeft, Brushes.Red,........​

[NinjaTrader_Emily]

If I set a value of 1 the indicator is not visible

protected override void OnBarUpdate()
{
avg = dynAverage[0];
offset = stdDevNumber * dynStdDev [0];
PriceLine[0] = dynPrice[0];
SignalLine[0] = dynSignal[0];
Average[0] = avg;
Upper[0] = avg + offset;
Lower[0] = avg - offset;

valordiaanerior = Average[1]; // NOT WORK

valordiaanerior = Average[0]; // WORK

Draw.TextFixed(this, "AVE", valordiaanerior.ToString(), TextPosition.BottomLeft, Brushes.Red,........​

When you change it to 1, are there any errors on the Log tab of the Control Center? If so, what do the errors report?

I look forward to your reply.

[Gibranes]

Calling error. You are accessing an index with an invalid value since it is out of range. That is, you have access to a series (barago) with a value of 5 when there are only four bars in the table

[Gibranes]

Error calling.Onbarupdate method on bar 0

[NinjaTrader_Emily]

Calling error. You are accessing an index with an invalid value since it is out of range. That is, you have access to a series (barago) with a value of 5 when there are only four bars in the table

We have details about this error message here:

https://ninjatrader.com/support/helpGuides/nt8/make_sure_you_have_enough_bars.htm

Basically, you will have to make sure there are enough bars on the chart to be able to calculate the desired value. Since avg = dynAverage[0] and Average[0] = avg, to get Average[1] you need enough bars to calculate dynAverage[1]. You can add a check to see if there are enough bars as follows:

// if the current bar is less than the number of bars needed to get the value from 1 bar ago, return
if (CurrentBar < // number of bars to get dynAverage[1])
return;

Please feel free to reach out with any additional questions or concerns.

[Gibranes]

I understand with a value greater than 5 it already works