Range Indicator

[aldenstout]

I am trying to build an indicator that merely plots the absolute value of the open and close of the current bar. It compiles, but then doesn't plot anything. here is what I have:

public class AttemptRange : Indicator
{
/// <summary>
/// This method is used to configure the indicator and is called once before any bar data is loaded.
/// </summary>
protected override void Initialize()
{
Add(new Plot(Color.Blue, PlotStyle.Bar, "RangeValue"));
}

/// <summary>
/// Called on each bar update event (incoming tick)
/// </summary>
protected override void OnBarUpdate()

{

Math.Abs(Open[0] - Close[0]);
}
}
}

[koganam]

I am trying to build an indicator that merely plots the absolute value of the open and close of the current bar. It compiles, but then doesn't plot anything. here is what I have:

public class AttemptRange : Indicator
{
/// <summary>
/// This method is used to configure the indicator and is called once before any bar data is loaded.
/// </summary>
protected override void Initialize()
{
Add(new Plot(Color.Blue, PlotStyle.Bar, "RangeValue"));
}

/// <summary>
/// Called on each bar update event (incoming tick)
/// </summary>
protected override void OnBarUpdate()

{

Math.Abs(Open[0] - Close[0]);
}
}
}

How is your Plot identified in the Properties listing for the indicator?

All you have done is performed a calculation. If you have not set any value for the Plot, then nothing can nor will be plotted.

[sledge]

How is your Plot identified in the Properties listing for the indicator?

All you have done is performed a calculation. If you have not set any value for the Plot, then nothing can nor will be plotted.

[marty087]

Range bar code

I am trying to build an indicator that merely plots the absolute value of the open and close of the current bar. It compiles, but then doesn't plot anything. here is what I have:

public class AttemptRange : Indicator
{
/// <summary>
/// This method is used to configure the indicator and is called once before any bar data is loaded.
/// </summary>
protected override void Initialize()
{
Add(new Plot(Color.Blue, PlotStyle.Bar, "RangeValue"));
}

/// <summary>
/// Called on each bar update event (incoming tick)
/// </summary>
protected override void OnBarUpdate()

{

Math.Abs(Open[0] - Close[0]);
}
}
}

Your maths is correct but you need to set you plot to the value. Like below.

RangeValue.Set(Open[0] - Close[0]);

Also, you will find that depending on whether you have an up bar or a down bar, 50% of the time you will have a negative value. You can deal with this by using the code below instead.

double tmp;

tmp = Open[0] - Close[0];

if (tmp < 0) tmp /= -1;

RangeValue.Set(tmp);

Also.... Set Overlay to false to ensure you get a fresh window and the range will not plot well with the values of the market you are looking at.

protected override void Initialize()
{
Add(new Plot(Color.Blue, PlotStyle.Bar, "RangeValue"));
Overlay = false;
}