KAMA SYSTEM--AMA System by Karthikmarar

_SECTION_BEGIN("KAMA System");

SetChartOptions(0,chartShowArrows|chartShowDates);
Title = ("KAMA SYSTEM - " + Name()+"  " + Date() +"  "+Interval(2) +"  "+ EncodeColor(colorLime)+",Open "+Open +" ,High "+H+" ,Low "+L+" ,Close "+C+" "+"{{VALUES}}");



bs=Param("BUY Sensitivity",3,2,20,1);
bf=Param("BUY Finetune",2,0.1,20,0.1);
// Sell Adjustments
ss=Param("SELL Sensitivity",3,2,20,1);
sf=Param("SELL Finetune",1,0.1,20,0.1);
//stock selection parameters
MyCL = Param( "CL", 10, 10, 100, 10 );
MyVK = Param( "VK", 30, 10, 100, 10 );
MyTL = Param( "TL", 300, 100, 1000, 100 );

fast = 2/(2+1);
slow = 2/(30+1);
//BUY part
dirb=abs(Close-Ref(Close,-bs));
volb=Sum(abs(Close-Ref(Close,-1)),bs);
ERb=dirb/volb;
scb =( ERb*(fast-slow)+slow)^2;
xb = AMA( C, scb );
flb=bf*StDev(xb-Ref(xb,-1),20);
j=xb-Ref(xb,-3);


//SELL part
dirs=abs(Close-Ref(Close,-ss));
vols=Sum(abs(Close-Ref(Close,-1)),ss);
ERs=dirs/vols;
scs =( ERs*(fast-slow)+slow)^2;
xs = AMA( C, scs );
fls=sf*StDev(xs-Ref(xs,-1),20);
k=Ref(Xs,-3)-Xs;

Buy=Cross(j,flb) ;
Sell=Cross(k,fls);
mycolor=IIf(C>xb,colorLime,colorRed);
Plot( C, "Close", mycolor,styleNoTitle | styleBar|styleThick   );
Plot(xb,"KAMA-BUY",colorYellow,1);
Plot(xs,"KAMA-SELL",colorOrange,1);
Buy = ExRem(Buy,Sell);
Sell = ExRem(Sell,Buy);

shape = Buy * shapeUpArrow +Sell * shapeDownArrow ;

PlotShapes( shape, IIf( Buy, colorGreen, colorYellow ),0, IIf( Buy, Low, High ) );

GraphXSpace = 5;
dist = 1.5*ATR(20);

for( i = 0; i < BarCount; i++ )
{
if( Buy[i] ) PlotText( "Buy\n@" + C[ i ], i, L[ i ]-dist[i], colorLime );
if( Sell[i] ) PlotText( "sell\n@" + C[ i ], i, L[ i ]+dist[i], colorYellow );
}
Filter= Buy OR Sell;

PositionScore=100/C;
PositionSize = - 20;
SetBarsRequired(10000, 10000);
SetFormulaName("KAMA System");

_SECTION_END();

_SECTION_BEGIN("IIR2");

function IIR2( input, f0, f1, f2 )
// the function body
{
result[ 0 ] = input[ 0 ];
result[ 1 ] = input[ 1 ];
for( i = 2; i < BarCount; i++ )
{
result[i] = f0 * input[i] + f1 * result[i-1] + f2 * result[i-2];
}

return result;
}

SmoothedClose = IIR2(Close, 0.2, 1.4, -0.6 );

Plot( SmoothedClose, "function example", colorRed );

_SECTION_END();

_SECTION_BEGIN("GSMA");
SetBarsRequired(100000,0);
PI = 3.1415926;

function jIIR2( input, f0, f1, f2 )
{
    result[ 0 ] = input[ 0 ];
    result[ 1 ] = input[ 1 ];

    for( i = 2; i < BarCount; i++ )
    {
       result[ i ] = f0 * input[ i ] +
                     f1 * result[ i - 1 ] +
                     f2 * result[ i - 2 ];
    }

   return result;
}

function GSMA( input, Period )
{
  N = 0;
  an = 2 * PI / Period;
  c0 = b0 = 1;
  c1 = b1 = b2 = a1 = a2 = gamma1 = 0;
  beta1 = 2.415 * ( 1- cos( an ) );
  alpha = -beta1 + sqrt( beta1 ^ 2 + 2 * beta1 );
  alpha1 = ( cos( an ) + sin( an ) - 1 )/cos( an );
   {
    fo = alpha ^ 2;
    f1 = 2 * ( 1- alpha ); f2 = -( 1 - alpha )*( 1 - alpha );
  }
 

  return jIIR2( input, fo,f1,f2);
}
period=Param("period",13,1,40,1);


Plot( GSMA( C,period), "GSMA", colorLime );


P = ParamField("Price field",-1);
Daysback = Param("Period for Liner Regression Line",21,1,240,1);
shift = Param("Look back period",0,0,240,1);



x = Cum(1);
lastx = LastValue( x ) - shift;
aa = LastValue( Ref(LinRegIntercept( p, Daysback), -shift) );
bb = LastValue( Ref(LinRegSlope( p, Daysback ), -shift) );
y = Aa + bb * ( x - (Lastx - DaysBack +1 ) );




LRColor = ParamColor("LR Color", colorCycle );
LRStyle = ParamStyle("LR Style");

LRLine =  IIf( x > (lastx - Daysback) AND BarIndex() < Lastx, y, Null );
Plot( LRLine , "LinReg", LRCOLOR, LRSTYLE ); //  styleDots );


SDP = Param("Standard Deviation", 1.5, 0, 6, 0.1);
SD = SDP/2;

width = LastValue( Ref(SD*StDev(p, Daysback),-shift) ); 
SDU = IIf( x > (lastx - Daysback) AND BarIndex() < Lastx, y+width , Null ) ;
SDL = IIf( x > (lastx - Daysback) AND BarIndex() < Lastx, y-width , Null ) ;

SDColor = ParamColor("SD Color", colorCycle );
SDStyle = ParamStyle("SD Style");

Plot( SDU , "Upper Lin Reg", SDColor,SDStyle );
Plot( SDL , "Lower Lin Reg", SDColor,SDStyle );


SDP2 = Param("2d Standard Deviation", 2.0, 0, 6, 0.1);
SD2 = SDP2/2;

width2 = LastValue( Ref(SD2*StDev(p, Daysback),-shift) );  
SDU2 = IIf( x > (lastx - Daysback) AND BarIndex() < Lastx, y+width2 , Null ) ;
SDL2 = IIf( x > (lastx - Daysback) AND BarIndex() < Lastx, y-width2 , Null ) ;

SDColor2 = ParamColor("2 SD Color", colorCycle );
SDStyle2 = ParamStyle("2 SD Style");

Plot( SDU2 , "Upper Lin Reg", SDColor2,SDStyle2 );
Plot( SDL2 , "Lower Lin Reg", SDColor2,SDStyle2 );