changing default EMA values

[ionaz]

Dear Traders

I am a beginner with NinjaScript so hopefully my request will be a piece of cake

I am trying to create a custom EMA indicator: with a period of 5 and based on HIGH prices.

I thought I should use the existing NinjaScript code for default EMA and adapt it to my needs. So I have changed a period value successfully to 5. But couldn't think of how to code EMA so that it is based on HIGH prices.


Just for your information I paste my variable section here:

public class ema5 : Indicator
{
#region Variables
private int period = 5;
#endregion

/// <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, "ema5"));

Overlay = true;
}

/// <summary>
/// Called on each bar update event (incoming tick)
/// </summary>
protected override void OnBarUpdate()
{
Value.Set(CurrentBar == 0 ? Input[0] : Input[0] * (2.0 / (1 + Period)) + (1 - (2.0 / (1 + Period))) * Value[1]);
}

[koganam]

Dear Traders

I am a beginner with NinjaScript so hopefully my request will be a piece of cake

I am trying to create a custom EMA indicator: with a period of 5 and based on HIGH prices.

I thought I should use the existing NinjaScript code for default EMA and adapt it to my needs. So I have changed a period value successfully to 5. But couldn't think of how to code EMA so that it is based on HIGH prices.


Just for your information I paste my variable section here:

public class ema5 : Indicator
{
#region Variables
private int period = 5;
#endregion

/// <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, "ema5"));

Overlay = true;
}

/// <summary>
/// Called on each bar update event (incoming tick)
/// </summary>
protected override void OnBarUpdate()
{
Value.Set(CurrentBar == 0 ? Input[0] : Input[0] * (2.0 / (1 + Period)) + (1 - (2.0 / (1 + Period))) * Value[1]);
}

You have coded it in the most flexible manner. Just use the configuration GUI to indicate that you want to use the High as your input DataSeries, at the time that you apply the indicator to a chart.

If you must insist on hard-coding it (not my method of choice, but it is your indicator, so your decision ), just change the word Input to High in the Value.Set line.

[ionaz]

koganam,

Thank you very much! it worked