Slow RSI of J M Wilder’s Version

Hi I have this code from Ninjatrader 8  for Slow RSI Wilder’s version,  I am wondering if you could please translate into Prorealtime:

#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
{

[Gui.CategoryOrder(“Parameters”, 1)]

public class srsi : Indicator
{

#region Variables
// Wizard generated variables
private int period = 14; // Default setting for Period
private int emaperiod = 6; // Default setting for Emaperiod
// User defined variables (add any user defined variables below)
private Series<double> SRSI; //The SRSI measures the strength of a security relative to a sixday EMA
private Series<double> srs;
private Series<double> Averagepositivedifference;
private Series<double> Averagenegativedifference;
private Series<double> positivedifference;
private Series<double> negativedifference;
private Series<double> wEMA;
#endregion

protected override void OnStateChange()
{
/// <summary>
/// J. Welles Wilder’s classic relative strength index has enjoyed a large following of technical analysts over the years. Here’s a slow version of it.
/// </summary>

if (State == State.SetDefaults)
{
Description = @”J. Welles Wilder’s classic relative strength index has enjoyed a large following of technical analysts over the years. Here’s a slow version of it.”;
Name = “srsi”;
Calculate = Calculate.OnBarClose;
IsOverlay = false;
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)
{

SRSI = new Series<double>(this); //The SRSI measures the strength of a security relative to a sixday EMA
srs = new Series<double>(this);
Averagepositivedifference = new Series<double>(this, MaximumBarsLookBack.Infinite);
Averagenegativedifference = new Series<double>(this, MaximumBarsLookBack.Infinite);
positivedifference = new Series<double>(this, MaximumBarsLookBack.Infinite);
negativedifference = new Series<double>(this, MaximumBarsLookBack.Infinite);
wEMA = new Series<double>(this, MaximumBarsLookBack.Infinite);

AddPlot(Brushes.Orange, “SRSIPlot0”);
AddPlot(Brushes.Green, “EmaSRSI”);

}
}

protected override void OnBarUpdate()
{
//Add your custom indicator logic here.

// Use this method for calculating your indicator values. Assign a value to each
// plot below by replacing ‘Close[0]’ with your own formula.

/*
WEMA formula= price today * K + EMA yesterday * (1-K) where K = 2 / (N+1)

Wilder EMA formula = price today * K + EMA yesterday (1-K) where K =1/N

Where N = the number of periods.
*/

double k=2/(emaperiod +1);

wEMA[0] = Close[0]*k+EMA(Close,emaperiod-1)[0]*(1-k);
//float positive_diff=(Close[0]-wEMA[0]);
//float negative_diff=(wEMA[0]+Close[0]);
if(Close[0]>EMA(Close,emaperiod)[0])
positivedifference[0] = Close[0]-EMA(Close,2*(emaperiod)-1)[0];
else
negativedifference[0] = EMA(Close,2*(emaperiod)-1)[0]-Close[0];

//if(positivedifference[0]>=0)
Averagepositivedifference[0] = EMA(positivedifference,2*period-1)[0];

//if(negativedifference[0]>=0)
Averagenegativedifference[0] = EMA(negativedifference,2*period-1)[0];

if(Averagenegativedifference[0]!=0)
{
srs[0] = Averagepositivedifference[0]/Averagenegativedifference[0];

SRSI[0] = 100 – (100/(1+srs[0]));
}
else
{
SRSI[0] = SRSI.GetValueAt(1);
}

SRSIPlot0[0] = SRSI[0];

EmaSRSI[0] = EMA(SRSI,2)[0];
}

#region Properties
[Browsable(false)] // this line prevents the data series from being displayed in the indicator properties dialog, do not remove
[XmlIgnore()] // this line ensures that the indicator can be saved/recovered as part of a chart template, do not remove
public Series<double> SRSIPlot0
{
get { return Values[0]; }
}

[Browsable(false)] // this line prevents the data series from being displayed in the indicator properties dialog, do not remove
[XmlIgnore()] // this line ensures that the indicator can be saved/recovered as part of a chart template, do not remove
public Series<double> EmaSRSI
{
get { return Values[1]; }
}

[NinjaScriptProperty]
[RefreshProperties(RefreshProperties.All)]
[Display(Name=”Period”, Description=”srsi period”, Order=1, GroupName=”Parameters”)]
public int Period
{
get { return period; }
set { period = Math.Max(2, value); }
}

[NinjaScriptProperty]
[RefreshProperties(RefreshProperties.All)]
[Display(Name=”Emaperiod”, Description=”ema period”, Order=2, GroupName=”Parameters”)]
public int Emaperiod
{
get { return emaperiod; }
set { emaperiod = Math.Max(1, value); }
}
#endregion

}
}

#region NinjaScript generated code. Neither change nor remove.

namespace NinjaTrader.NinjaScript.Indicators
{
public partial class Indicator : NinjaTrader.Gui.NinjaScript.IndicatorRenderBase
{
private srsi[] cachesrsi;
public srsi srsi(int period, int emaperiod)
{
return srsi(Input, period, emaperiod);
}

public srsi srsi(ISeries<double> input, int period, int emaperiod)
{
if (cachesrsi != null)
for (int idx = 0; idx < cachesrsi.Length; idx++)
if (cachesrsi[idx] != null && cachesrsi[idx].Period == period && cachesrsi[idx].Emaperiod == emaperiod && cachesrsi[idx].EqualsInput(input))
return cachesrsi[idx];
return CacheIndicator<srsi>(new srsi(){ Period = period, Emaperiod = emaperiod }, input, ref cachesrsi);
}
}
}

namespace NinjaTrader.NinjaScript.MarketAnalyzerColumns
{
public partial class MarketAnalyzerColumn : MarketAnalyzerColumnBase
{
public Indicators.srsi srsi(int period, int emaperiod)
{
return indicator.srsi(Input, period, emaperiod);
}

public Indicators.srsi srsi(ISeries<double> input , int period, int emaperiod)
{
return indicator.srsi(input, period, emaperiod);
}
}
}

namespace NinjaTrader.NinjaScript.Strategies
{
public partial class Strategy : NinjaTrader.Gui.NinjaScript.StrategyRenderBase
{
public Indicators.srsi srsi(int period, int emaperiod)
{
return indicator.srsi(Input, period, emaperiod);
}

public Indicators.srsi srsi(ISeries<double> input , int period, int emaperiod)
{
return indicator.srsi(input, period, emaperiod);
}
}
}

#endregion

SRSI.jpg