Stochastic EMA Formula and color

[nikodine]

Hello,
I have Stochastic that paint the slope of the %D line in 2 colors, can someone help me with adding also 2 colors slope for %K?
And Im try to change the formula SMA to EMA but I cant find the place in the script where to do that...
I attach the Indi:


Thanks

[NinjaTrader_PaulH]

Hello nikodine,

Thanks for your post.

The indicator cannot be changed from SMA to EMA because it does not contain the stochastics code that builds the lines, it only calls the existing stochastics indicator. You would need to make a copy of the existing Stochastics indicator, rename the copy and then change lines 65 & 66 from SMA to EMA.


To change the Stochastics_Color indicator to color the %K line you would need to make a number of changes as follows (may want to make a copy of this indicator to make these changes on as I am referring to specific line numbers in the existing code):
1) Delete line 39
2) Copy lines 40 - 42 and paste below line 42, then change plot names by adding "K" on the end, like RisingK. Reason is all plots must have unique names.
3) Delete line 53
4) Copy lines 60 - 82, paste them below line 82
5) In the newly pasted lines, change the Plot line names to what you changes the plot names to in lines 43-45 and Change the .D to .K in each line.
6) Delete lines 96- 101
7) Line 108, change Values[1] to Values[0]
8) Change line 115 from Value[2] to Value[1]
9) Change line 122 from Value[3] to Value[2]
10 Copy lines 104 - 123 and paste them below 123, in the lines pasted change the Values[] in sequence from 0,1,2 to 3, 4, 5

[nikodine]

Hello nikodine,

Thanks for your post.

The indicator cannot be changed from SMA to EMA because it does not contain the stochastics code that builds the lines, it only calls the existing stochastics indicator. You would need to make a copy of the existing Stochastics indicator, rename the copy and then change lines 65 & 66 from SMA to EMA.


To change the Stochastics_Color indicator to color the %K line you would need to make a number of changes as follows (may want to make a copy of this indicator to make these changes on as I am referring to specific line numbers in the existing code):
1) Delete line 39
2) Copy lines 40 - 42 and paste below line 42, then change plot names by adding "K" on the end, like RisingK. Reason is all plots must have unique names.
3) Delete line 53
4) Copy lines 60 - 82, paste them below line 82
5) In the newly pasted lines, change the Plot line names to what you changes the plot names to in lines 43-45 and Change the .D to .K in each line.
6) Delete lines 96- 101
7) Line 108, change Values[1] to Values[0]
8) Change line 115 from Value[2] to Value[1]
9) Change line 122 from Value[3] to Value[2]
10 Copy lines 104 - 123 and paste them below 123, in the lines pasted change the Values[] in sequence from 0,1,2 to 3, 4, 5

Paul, thank you for your answer!
I think will be better to combine the idea of EMA and Colors in one indi.
I done the job for changing the SMA to EMA in the copy of original Stoch., now I want to make the colors as in the "Stochastics_Color, so what would be the syntax to make the %K and %D colored the slope, and when to put it?

Thank you again for your help.
Cheers!

[NinjaTrader_PaulH]

Hello nikodine,

Thanks for your reply.

To add the colors to a copy of the Stochastics indicator will be much easier. You will be using Rising, Falling and PlotColors.
References:
http://ninjatrader.com/support/helpG...t7/?rising.htm
http://ninjatrader.com/support/helpG...7/?falling.htm
http://ninjatrader.com/support/helpG...plotcolors.htm

The PlotColors helpguide link provides an example that is pretty much what you need.

In your copy of the stochastics, you will be working with the "D" and the "K" plots. Note the order they are listed in the initialize section, D is first and K is second. Because of that order, PlotColors[0][0] will be the D and PlotColors[1][0] will be K

[nikodine]

Hello nikodine,

Thanks for your reply.

To add the colors to a copy of the Stochastics indicator will be much easier. You will be using Rising, Falling and PlotColors.
References:
http://ninjatrader.com/support/helpG...t7/?rising.htm
http://ninjatrader.com/support/helpG...7/?falling.htm
http://ninjatrader.com/support/helpG...plotcolors.htm

The PlotColors helpguide link provides an example that is pretty much what you need.

In your copy of the stochastics, you will be working with the "D" and the "K" plots. Note the order they are listed in the initialize section, D is first and K is second. Because of that order, PlotColors[0][0] will be the D and PlotColors[1][0] will be K

Hey Paul,
Thank you for your reply.

Im getting some errors here and cannot compile the file, can you check where Im wrong with the syntax?

#region Variables
private int periodD = 7; // SlowDperiod
private int periodK = 14; // Kperiod
private int smooth = 3; // SlowKperiod
private DataSeries den;
private DataSeries nom;
private DataSeries fastK;
#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.Green, "D"));
Add(new Plot(Color.Orange, "K"));

Add(new Line(Color.DarkViolet, 20, "Lower"));
Add(new Line(Color.YellowGreen, 80, "Upper"));

den = new DataSeries(this);
nom = new DataSeries(this);
fastK = new DataSeries(this);
}

/// <summary>
/// Calculates the indicator value(s) at the current index.
/// </summary>
protected override void OnBarUpdate()
{
nom.Set(Close[0] - MIN(Low, PeriodK)[0]);
den.Set(MAX(High, PeriodK)[0] - MIN(Low, PeriodK)[0]);

if (den[0].Compare(0, 0.000000000001) == 0)
fastK.Set(CurrentBar == 0 ? 50 : fastK[1]);
else
fastK.Set(Math.Min(100, Math.Max(0, 100 * nom[0] / den[0])));

// Slow %K == Fast %D
K.Set(EMA(fastK, Smooth)[0]);
D.Set(EMA(K, PeriodD)[0]);
}
protected override void Initialize()
{
// Add two plots
Add(new Plot(Color.Blue, PlotStyle.Line, "Rising"));
Add(new Plot(Color.Orange, PlotStyle.Line, "Falling"));
}
protected override void OnBarUpdate()
{

// Sets values to our two plots
Rising.Set(EMA(High,"D")[0]);
Falling.Set(EMA(Low,"K")[0]);

// Color the Upper plot based on plot value conditions
if (Rising)
PlotColors[0][0] = Color.Blue;
else if (Falling)
PlotColors[1][0] = Color.Red;
// Color the Lower plot based on plot value conditions
if (Rising(Falling))
PlotColors[0][0] = Color.Blue;
else if (Falling(Lower))
PlotColors[1][0] = Color.Red;
}
#region Properties
/// <summary>
/// Gets the slow D value.
/// </summary>
[Browsable(false)]
[XmlIgnore()]
public DataSeries D
{
get { return Values[0]; }
}

/// <summary>
/// Gets the slow K value.
/// </summary>
[Browsable(false)]
[XmlIgnore()]
public DataSeries K
{
get { return Values[1]; }
}

/// <summary>
/// </summary>
[Description("Numbers of bars used for moving average over K values")]
[GridCategory("Parameters")]
public int PeriodD
{
get { return periodD; }
set { periodD = Math.Max(1, value); }
}

/// <summary>
/// </summary>
[Description("Numbers of bars used for calculating the K values")]
[GridCategory("Parameters")]
public int PeriodK
{
get { return periodK; }
set { periodK = Math.Max(1, value); }
}

/// <summary>
/// </summary>
[Description("Number of bars for smoothing the slow K values")]
[GridCategory("Parameters")]
public int Smooth
{
get { return smooth; }
set { smooth = Math.Max(1, value); }
}
#endregion
}
}

[NinjaTrader_PaulH]

Hello nikodine,

Thanks for your post.

Remove what you have added:
protected override void Initialize()
{
// Add two plots
Add(new Plot(Color.Blue, PlotStyle.Line, "Rising"));
Add(new Plot(Color.Orange, PlotStyle.Line, "Falling"));
}
protected override void OnBarUpdate()
{

// Sets values to our two plots
Rising.Set(EMA(High,"D")[0]);
Falling.Set(EMA(Low,"K")[0]);

// Color the Upper plot based on plot value conditions
if (Rising)
PlotColors[0][0] = Color.Blue;
else if (Falling)
PlotColors[1][0] = Color.Red;
// Color the Lower plot based on plot value conditions
if (Rising(Falling))
PlotColors[0][0] = Color.Blue;
else if (Falling(Lower))
PlotColors[1][0] = Color.Red;
}

Immediately after this line: D.Set(EMA(K, PeriodD)[0]); and before the }
Add:

if (Rising(K))
PlotColors[0][0] = Color.Blue;
else if (Falling(K))
PlotColors[0][0] = Color.Red;
else
PlotColors[0][0] = Color.Yellow;

// Color the Lower plot based on plot value conditions
if (Rising(D))
PlotColors[1][0] = Color.Blue;
else if (Falling(D))
PlotColors[1][0] = Color.Red;
else
PlotColors[1][0] = Color.Yellow;

(or whatever colors you wish).