NT8 compiler errors CS0029 & CS0021

[Clmukab]

Hi,

I'm in the process of converting a NT7 indicator (measure relative volume based on the time of the day) to a NT8 indicator but I'm getting error code CS0029 that is described as "Cannot implicitly convert type "double[]" to "double" and error code CS0021 that is described as "

Cannot implicitly convert type "int[]" to "int".

Below is a portion of the code, the errors are called out for the last 2 lines:

IsSuspendedWhileInactive = true;
VolAtTime = 0;
AvgVolAtTime = 0;
NumberOfOccurences = 0;
TempVol = 0;
CVol = 0;
TempNOC = 0;
BarCounter = 0;
AverageVolume = 0;
CumulativeVolume = 0;

}
else if (State == State.Configure)
{
AddPlot(new Stroke(Brushes.Plum, 2), PlotStyle.Bar, "CumulativeVolumeDiff");
IsOverlay = false;
AvgVolAtTime = new double[4000];
NumberOfOccurences = new int[4000];
}

Any advise on how to fix this?

Thanks.

[NinjaTrader_PaulH]

Hello Clmukab,

Thanks for your post and welcome to the NinjaTrader forums!

Above State.Configure you are showing AvgVolAtTime = 0 and NumberOfOcurrances = 0 which implies that they are single variables, then in State.Configure you are now trying to initialize these as arrays and that is why you have the compile errors.

I suspect you want to use these as arrays so I would suggest creating them at the class level and initializing them in State.DataLoaded (reference: https://ninjatrader.com/support/help...tatechange.htm). If so, you would also need to remove them from State.Defaults

Here is an example you can test with:

[I]public class ArrayTest : Indicator
{
private double [] NumberOfOccurances;

protected override void OnStateChange()
{
if (State == State.SetDefaults)
{
Description = @"Enter the description for your new custom Indicator here.";
Name = "ArrayTest";
Calculate = Calculate.OnBarClose;
IsOverlay = true;
DisplayInDataBox = true;
DrawOnPricePanel = true;
DrawHorizontalGridLines = true;
DrawVerticalGridLines = true;
PaintPriceMarkers = true;
ScaleJustification = NinjaTrader.Gui.Chart.ScaleJustification.Right;
//Disable this property if your indicator requires custom values that cumulate with each new market data event.
//See Help Guide for additional information.
IsSuspendedWhileInactive = true;
}
else if (State == State.Configure)
{
}
else if (State == State.DataLoaded)
{
NumberOfOccurances = new double [4000];
for (int i = 0; i < 100; i++)
{
NumberOfOccurances[i] = i * 3.141; // just to put some values in the first 100 to print later
}
}
}

protected override void OnBarUpdate()
{
if (CurrentBar == 0)
{
for (int i = 0; i < 100; i++)
{
Print ("i: "+i+" value stored = "+NumberOfOccurances);
}
}

}
}

Example of output:
i: 0 value stored = 0
i: 1 value stored = 3.141
i: 2 value stored = 6.282
i: 3 value stored = 9.423
i: 4 value stored = 12.564
i: 5 value stored = 15.705
i: 6 value stored = 18.846
i: 7 value stored = 21.987
i: 8 value stored = 25.128
i: 9 value stored = 28.269
i: 10 value stored = 31.41
i: 11 value stored = 34.551
i: 12 value stored = 37.692
i: 13 value stored = 40.833
i: 14 value stored = 43.974