My Code compiles, yet doesn't work right.

[jamestrader21x]

The code Compiles and I can see an EMA on a chart . However, it stays solid blue. If I remove the else {
PlotBrushes[0][0]= Range; }, it stays solid lime green. My Slopeperiod = 45 shows up in the indicator parameters, however, it does nothing when adjusted. I've been working on this all day. Frustrated as hell!

#region Using declarations
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using System.Xml.Serialization;
using NinjaTrader.Cbi;
using NinjaTrader.Gui;
using NinjaTrader.Gui.Chart;
using NinjaTrader.Gui.SuperDom;
using NinjaTrader.Gui.Tools;
using NinjaTrader.Data;
using NinjaTrader.NinjaScript;
using NinjaTrader.Core.FloatingPoint;
using NinjaTrader.NinjaScript.DrawingTools;
#endregion

//This namespace holds Indicators in this folder and is required. Do not change it.
namespace NinjaTrader.NinjaScript.Indicators
{
public class MyTest : Indicator
{
protected override void OnStateChange()
{
if (State == State.SetDefaults)
{
Description = @"Enter the description for your new custom Indicator here.";
Name = "MyTest";
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;
Period = 14;
UpSlope = Brushes.LimeGreen;
DownSlope = Brushes.Red;
Range = Brushes.Blue;
SlopePeriod = 45;
AddPlot(Brushes.Orange, "Slope_Color");
}
else if (State == State.Configure)
{
}
}

protected override void OnBarUpdate()
{
Value[0] = (CurrentBar == 0 ? Input[0] : Input[0] * (2.0 / (1 + Period)) + (1 - (2.0 / (1 + Period))) * Value[1]);


double slopePeriod1 = Math.Tan(5 * Math.PI/180);

double trueSlope = Math.Atan(slopePeriod1 * 180 / Math.PI);


if (Value[0] >= trueSlope);
{
PlotBrushes[0][0] = UpSlope;
}
if (Value[0] <= trueSlope)
{
PlotBrushes[0][0] = DownSlope;
}else {
PlotBrushes[0][0]= Range;
}

}

#region Properties
[NinjaScriptProperty]
[Range(1, int.MaxValue)]
[Display(Name = "Period", Order = 1, GroupName = "Parameters")]
public int Period
{ get; set; }

[NinjaScriptProperty]
[XmlIgnore]
[Display(Name = "UpSlope", Order = 2, GroupName = "Parameters")]
public Brush UpSlope
{ get; set; }

[Browsable(false)]
public string UpSlopeSerializable
{
get { return Serialize.BrushToString(UpSlope); }
set { UpSlope = Serialize.StringToBrush(value); }
}

[NinjaScriptProperty]
[XmlIgnore]
[Display(Name = "DownSlope", Order = 3, GroupName = "Parameters")]
public Brush DownSlope
{ get; set; }

[Browsable(false)]
public string DownSlopeSerializable
{
get { return Serialize.BrushToString(DownSlope); }
set { DownSlope = Serialize.StringToBrush(value); }
}

[NinjaScriptProperty]
[XmlIgnore]
[Display(Name = "Range", Order = 4, GroupName = "Parameters")]
public Brush Range
{ get; set; }

[Browsable(false)]
public string RangeSerializable
{
get { return Serialize.BrushToString(Range); }
set { Range = Serialize.StringToBrush(value); }
}

[NinjaScriptProperty]
[Range(1, int.MaxValue)]
[Display(Name = "SlopePeriod", Order = 5, GroupName = "Parameters")]
public int SlopePeriod
{ get; set; }
#endregion

}
}

#region NinjaScript generated code. Neither change nor remove.

namespace NinjaTrader.NinjaScript.Indicators
{
public partial class Indicator : NinjaTrader.Gui.NinjaScript.IndicatorRenderBase
{
private MyTest[] cacheMyTest;
public MyTest MyTest(int period, Brush upSlope, Brush downSlope, Brush range, int slopePeriod)
{
return MyTest(Input, period, upSlope, downSlope, range, slopePeriod);
}

public MyTest MyTest(ISeries<double> input, int period, Brush upSlope, Brush downSlope, Brush range, int slopePeriod)
{
if (cacheMyTest != null)
for (int idx = 0; idx < cacheMyTest.Length; idx++)
if (cacheMyTest[idx] != null && cacheMyTest[idx].Period == period && cacheMyTest[idx].UpSlope == upSlope && cacheMyTest[idx].DownSlope == downSlope && cacheMyTest[idx].Range == range && cacheMyTest[idx].SlopePeriod == slopePeriod && cacheMyTest[idx].EqualsInput(input))
return cacheMyTest[idx];
return CacheIndicator<MyTest>(new MyTest(){ Period = period, UpSlope = upSlope, DownSlope = downSlope, Range = range, SlopePeriod = slopePeriod }, input, ref cacheMyTest);
}
}
}

namespace NinjaTrader.NinjaScript.MarketAnalyzerColumns
{
public partial class MarketAnalyzerColumn : MarketAnalyzerColumnBase
{
public Indicators.MyTest MyTest(int period, Brush upSlope, Brush downSlope, Brush range, int slopePeriod)
{
return indicator.MyTest(Input, period, upSlope, downSlope, range, slopePeriod);
}

public Indicators.MyTest MyTest(ISeries<double> input , int period, Brush upSlope, Brush downSlope, Brush range, int slopePeriod)
{
return indicator.MyTest(input, period, upSlope, downSlope, range, slopePeriod);
}
}
}

namespace NinjaTrader.NinjaScript.Strategies
{
public partial class Strategy : NinjaTrader.Gui.NinjaScript.StrategyRenderBase
{
public Indicators.MyTest MyTest(int period, Brush upSlope, Brush downSlope, Brush range, int slopePeriod)
{
return indicator.MyTest(Input, period, upSlope, downSlope, range, slopePeriod);
}

public Indicators.MyTest MyTest(ISeries<double> input , int period, Brush upSlope, Brush downSlope, Brush range, int slopePeriod)
{
return indicator.MyTest(input, period, upSlope, downSlope, range, slopePeriod);
}
}
}

#endregion

[NinjaTrader_JoshG]

Hello jamestrader21x,
Thanks for your post.

Lets start with your SlopePeriod parameter. I do see that you would be able to set it inside the indicators window, but I do not set that you are actually using SlopePeriod in your logic.

[jamestrader21x]

I don't understand the Syntax for Slope(). Some one would need to provide a better example than what's in the help guide and I don't mean (Slope(20),5,0).
that Iseries<double>series doesn't make any sense to a newbie like myself. i don't know how it coincides with the math.atan (slope * 180/math.PI) or whatever. It would be nice if NJ would put out some videos explaining these things with examples. Coding is frustrating.

[NinjaTrader_JoshG]

jamestrader21x,

I'd be happy to submit a request for you. I see there is already demand for for an increased library of NinjaScript tips videos and will have your vote added to the requests that I see.

Before I do, can you please elaborate on the specific tips you would want discussed in this video about Slope? Do you mean just more NinjaScript tutorial videos in general?

[jamestrader21x]

I'd like them to explain the whole concept of Slope() in general.
"Syntax Slope(ISeries<double>series,intstartBarsAgo,intendBarsAgo)" What does "ISeries<double>series" mean? How about an example of what it looks like it c# code.

Tip: Thinking in degrees, for example a 1 to -1 return range would translate to 45 to -45. To convert you could look into working with this formula - Math.Atan(Slope) * 180 / Math.PI

They don't tell you how to use it along with Slope(). The help guide is very vague; and for a newbie like myself, frustrating to try and figure out. NJ uses non traditional C# jargon. I tried to find my own work around but was unsuccessful.

[NinjaTrader_JoshG]

jamestrader21x,

I have recorded this request in SFT-3168,

Maybe if you tell me the general pseudocode for your logic I may be able to help you figure this out. I find copy/paste code difficult to read.

[jamestrader21x]

I'm trying to develop a Tri-colored EMA with a Slope parameter. If EMA up slope reaches x degrees, then the EMA changes to Up trend color, If EMA down slope reaches x degrees, then the EMA changes to the down trend color. If neither +/- degree parameter is triggered, then the EMA remains the Range Color. I wanted to add in a custom Slope period setting. That is what I'm trying to write code for. Having trouble with the syntax for Slope() and the math.atan(slope) * 180/math.PI.... Still working on it. Still unsuccessful.