Indicator not showing on the Data Window

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Hi All. I am trying to use an Indicator in an EA, but the indicator is not showing on the Data Window, hence not exposing any value to the EA. I checked the indicator code but could not see what is missing kindly assist. Here is the code:

#property indicator_separate_window
#property indicator_minimum 0.0
#property indicator_maximum 1.0
#property indicator_buffers 3
#property indicator_color2 Blue
#property indicator_color3 Red
#property indicator_style2 STYLE_SOLID
#property indicator_style3 STYLE_SOLID
#property indicator_width2 1
#property indicator_width3 1

extern int period=21;

double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];
int init()
{

SetIndexStyle(0,DRAW_NONE);
SetIndexStyle(1,DRAW_HISTOGRAM);
SetIndexStyle(2,DRAW_HISTOGRAM);
IndicatorDigits(Digits+1);

SetIndexBuffer(0,ExtMapBuffer1);
SetIndexBuffer(1,ExtMapBuffer2);
SetIndexBuffer(2,ExtMapBuffer3);

IndicatorShortName("Chaos Oscillator");
SetIndexLabel(0,NULL);
SetIndexLabel(1,NULL);
SetIndexLabel(2,NULL);

return(0);
}

int start()
{

int limit;
int counted_bars=IndicatorCounted();
double prev,current,old;
double Value=0,Value1=0,Value2=0,Fish=0,Fish1=0,Fish2=0;
double price;
double MinL=0;
double MaxH=0;

if(counted_bars>0) counted_bars--;
limit=Bars-counted_bars;

for(int i=0; i<Bars; i++)
//for(int i=Bars; i>=0; i--)
{
MaxH = High[Highest(NULL,0,MODE_HIGH,period,i)];
MinL = Low[Lowest(NULL,0,MODE_LOW,period,i)];
price = (High[i]+Low[i])/2;

if(MaxH-MinL == 0) Value = 0.33*2*(0-0.5) + 0.67*Value1;
else Value = 0.33*2*((price-MinL)/(MaxH-MinL)-0.5) + 0.67*Value1;

Value=MathMin(MathMax(Value,-0.999),0.999);

if(1-Value == 0) ExtMapBuffer1[i]=0.5+0.5*Fish1;
else ExtMapBuffer1[i]=0.5*MathLog((1+Value)/(1-Value))+0.5*Fish1;

Value1=Value;
Fish1=ExtMapBuffer1[i];
}

bool up=true;
for(i=Bars; i>=0; i--)
{
current=ExtMapBuffer1[i];
prev=ExtMapBuffer1[i+1];

if (((current<0)&&(prev>0))||(current<0)) up= false;
if (((current>0)&&(prev<0))||(current>0)) up= true;

if(!up)
{
ExtMapBuffer3[i]=1.0;
ExtMapBuffer2[i]=EMPTY_VALUE;
}

else
{
ExtMapBuffer2[i]=1.0;
ExtMapBuffer3[i]=EMPTY_VALUE;
}
}

return(0);
}

Thamks.