Stochastic RSI indicator

[fxfib]

How difficult would it be for someone to code the mt4 indicator for Ninjatrader? The Stochastic RSI I have for use in Ninjatrader is not as smooth as this one nor does it pick the turning points as well. I'm really interested in the plot of the %D line.

Thanks in advance,
Thomas

//+------------------------------------------------------------------+
//| Basic StochRSI.mq4 |
//| |
//| |
//+------------------------------------------------------------------+
#property copyright ""
#property link ""
#property indicator_separate_window
#property indicator_level3 20
#property indicator_level5 80
#property indicator_buffers 2
#property indicator_color1 White
#property indicator_color2 Red
//---- input parameters
/* Applied price constants:
-------------------------------
PRICE_CLOSE 0 Close price.
PRICE_OPEN 1 Open price.
PRICE_HIGH 2 High price.
PRICE_LOW 3 Low price.
PRICE_MEDIAN 4 Median price, (high+low)/2.
PRICE_TYPICAL 5 Typical price, (high+low+close)/3.
PRICE_WEIGHTED 6 Weighted close price, (high+low+close+close)/4.
--------------------------------- */
extern int RPrice=0;
extern int RPeriod=14;
extern int KPeriod=8;
extern int DPeriod=5;
extern int Slowing=3;
//---- buffers
double MainBuffer[];
double SignalBuffer[];
double HighesBuffer[];
double LowesBuffer[];
double rsi[];
//----
int draw_begin1=0;
int draw_begin2=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
string short_name;
//---- 3 additional buffers are used for counting.
IndicatorBuffers(5);
SetIndexBuffer(2, HighesBuffer);
SetIndexBuffer(3, LowesBuffer);
SetIndexBuffer(4, rsi);
//---- indicator lines
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0, MainBuffer);
SetIndexStyle(1,DRAW_LINE);
SetIndexBuffer(1, SignalBuffer);
//---- name for DataWindow and indicator subwindow label
short_name="StochRSI("+RPeriod+","+KPeriod+","+DPe riod+","+Slowing+")";
IndicatorShortName(short_name);
SetIndexLabel(0,short_name);
SetIndexLabel(1,"Signal");
//----
draw_begin1=KPeriod+Slowing;
draw_begin2=draw_begin1+DPeriod;
SetIndexDrawBegin(0,draw_begin1);
SetIndexDrawBegin(1,draw_begin2);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Stochastics formula applied to RSI |
//+------------------------------------------------------------------+
int start()
{
int i,k;
int counted_bars=IndicatorCounted();
//---- check Slowing
if (Slowing<=0) Slowing=1;
//----
if(Bars<=draw_begin2) return(0);
//---- initial zero
if(counted_bars<1)
{
for(i=1;i<=draw_begin1;i++) MainBuffer[Bars-i]=0;
for(i=1;i<=draw_begin2;i++) SignalBuffer[Bars-i]=0;
}
//---- initial RSI
i=Bars-RPeriod;
if(counted_bars>RPeriod) i=Bars-counted_bars-1;
while(i>=0){rsi[i]=iRSI(NULL,0,RPeriod,RPrice,i); i--; }
//---- minimums & maximums counting
i=Bars-KPeriod;
if(counted_bars>KPeriod) i=Bars-counted_bars-1;
while(i>=0)
{
double min=1000000, max=-1000000;
k=i+KPeriod-1;
while(k>=i)
{
min=MathMin(min,rsi[k]);
max=MathMax(max,rsi[k]);
k--;
}
LowesBuffer[i]=min;
HighesBuffer[i]=max;
i--;
}
//---- %K line of RSI
i=Bars-draw_begin1;
if(counted_bars>draw_begin1) i=Bars-counted_bars-1;
while(i>=0)
{
double sumlow=0.0;
double sumhigh=0.0;
for(k=(i+Slowing-1);k>=i;k--)
{
sumlow+=rsi[k]-LowesBuffer[k];
sumhigh+=HighesBuffer[k]-LowesBuffer[k];
}
if(sumhigh==0.0) MainBuffer[i]=100.0;
else MainBuffer[i]=sumlow/sumhigh*100;
i--;
}
//---- last counted bar will be recounted
if(counted_bars>0) counted_bars--;
int limit=Bars-counted_bars;
//---- signal line is simple movimg average
for(i=0; i<limit; i++)
SignalBuffer[i]=iMAOnArray(MainBuffer,Bars,DPeriod,0,MODE_SMA,i);
//----
return(0);
}
//+------------------------------------------------------------------+

[NinjaTrader_JoshP]

As a last resort you could also try contacting one of the 3rd party NinjaScript Consultants here: http://www.ninjatrader.com/webnew/pa...injaScript.htm