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Help modding esignal efs code


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Help modding esignal efs code

  #1 (permalink)
manictrader
london
 
Posts: 3 since Jun 2014
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Hi

I have been using this indicator for a few months and i like it but do you know any way to mod the code so it will highlight a bar yellow if it hits +8 or -8?

Thanks

 
Code
/********************************************************************
Title:		Value Chart Indicator Script for eSignal 7.x
By:         Chris D. Kryza (Divergence Software, Inc.)
Email:      [email protected]
Incept:     09/26/2003
Version:    1.0.0


=====================================================================
Fix History:

09/26/2003 -   Initial Release
1.0.0

=====================================================================
Project Description:   

David Stenhahl's Value Chart Indicator. From the book "Dynamic
Trading Indicators" by Mark Helweg and David Stendahl.

If you come across any fixes or have any ideas on how to spruce it up, I
would appreciate it if you would let me know ([email protected]).

Dislaimer: For educational purposes only! Obviously, no guarantees 
whatsoever and use at your own risk.

**********************************************************************/


//Global Variables
var grID                = 0;
var nBarCounter			= 0;
var aFPArray			= new Array();
var aArray				= new Array();
var nVarP				= null;
var bInitialized		= false;
var nTotalBars			= null;
var nMaxBars			= 200;

var nStudyMin			= -12;
var nStudyMax			=  12;


//== PreMain function required by eSignal to set things up
function preMain() {
var x;

    setPriceStudy(false);
    setStudyTitle("Value Chart");
    
    addBand(  8, PS_SOLID, 1, Color.red,  -10 );
    addBand(  4, PS_SOLID, 1, Color.teal, -11 );
    addBand( -4, PS_SOLID, 1, Color.teal, -12 );
    addBand( -8, PS_SOLID, 1, Color.red,  -13 );            

	//unrem this if you don't want the labels in cursor window
    setShowCursorLabel(false);
    
    setStudyMin( nStudyMin );
    setStudyMax( nStudyMax );
    
    setComputeOnClose();
    grID = 0;
    
    //initialize formula parameters
	x=0; 
	aFPArray[x] = new FunctionParameter( "NumBars", FunctionParameter.NUMBER);
	with( aFPArray[x] ) {
		setName( "Input: Bars" );
		setLowerLimit( 2 );
		setUpperLimit( 1000 );
		setDefault( 5 );
	}  
	x++;
	aFPArray[x] = new FunctionParameter( "MaxToDraw", FunctionParameter.NUMBER);
	with( aFPArray[x] ) {
		setName( "Max Bars to Draw" );
		setLowerLimit( 20 );
		setUpperLimit( 5000 );
		setDefault( 100 );
	}  

	for ( x=0; x<50; x++ ) {
		aArray[x] = 0.0;
	}

}

//== Main processing function
function main( NumBars, MaxToDraw ) {
var x;
var nVarA;
var nVarB;
var nVarC;
var nVarD;
var nVarE;
var nVarR1;
var nVarR2;
var nVarR3;
var nVarR4;
var nVarR5;
var nVarR0;
var nOpen, nHigh, nLow, nClose;
	
	//script is initializing
    if ( getBarState() == BARSTATE_ALLBARS ) {
        return null;
    }

	if ( bInitialized == false ) {
		nVarP = Math.round( NumBars/5 );
		nMaxBars = MaxToDraw*3;
		nMaxBars += (nMaxBars % 3)-1;
		nTotalBars = getNumBars();
		bInitialized = true;
	}

	//called on each new bar
	if ( getBarState() == BARSTATE_NEWBAR ) {
	
		aArray.pop();
		aArray.unshift(0);
	
		nBarCounter++;
		
	}

	if ( nBarCounter < (nTotalBars-(nMaxBars/3))-10 ) return;


	if ( NumBars > 7 ) {
		nVarA = Highest( nVarP, 0 ) - Lowest( nVarP, 0 );
		if ( nVarA == 0 && nVarP ==1 ) 
			nVarR1 = Math.abs( close()-close(-nVarP) );
		else
			nVarR1 = nVarA;
			
		nVarB = Highest( nVarP, nVarP+1 ) - Lowest( nVarP, nVarP );
		if ( nVarB == 0 && nVarP==1 )
			nVarR2 = Math.abs( close(-nVarP)-close(-(nVarP*2)));
		else
			nVarR2 = nVarB;
			
		nVarC = Highest( nVarP, nVarP*2 ) - Lowest( nVarP, nVarP*2 );
		if ( nVarC == 0 && nVarP==1 )
			nVarR3 = Math.abs( close(-(nVarP*2))-close(-(nVarP*3)));
		else
			nVarR3 = nVarC;

		nVarD = Highest( nVarP, nVarP*3 ) - Lowest( nVarP, nVarP*3 );
		if ( nVarD == 0 && nVarP==1 )
			nVarR4 = Math.abs( close(-(nVarP*3))-close(-(nVarP*4)));
		else
			nVarR4 = nVarD;
		
		nVarE = Highest( nVarP, nVarP*4 ) - Lowest( nVarP, nVarP*4 );
		if ( nVarE == 0 && nVarP==1 )
			nVarR5 = Math.abs( close(-(nVarP*4))-close(-(nVarP*5)));
		else
			nVarR5 = nVarE;
		
		nLRange = ( ( nVarR1 + nVarR2 + nVarR3 + nVarR4 + nVarR5 ) / 5 ) * 0.20;
	}
	else {
		if ( Math.abs( close()-close(-1) ) > (high()-low())) 
			nVar0 = Math.abs( close()-close(-1) );
		else
			nVar0 = high()-low();
			
		if ( high()==low() )
			nVar0 = Math.abs( close()-close(-1) );
			
		aArray[0] = nVar0;
			
		nLRange = Average( aArray, 5 ) * 0.20;
	}
		
		
	if ( nLRange <= 0 ) return;
	
	nOpen  = (  open() - HLAverage( NumBars ) ) / nLRange;
	nHigh  = (  high() - HLAverage( NumBars ) ) / nLRange;
	nLow   = (   low() - HLAverage( NumBars ) ) / nLRange;
	nClose = ( close() - HLAverage( NumBars ) ) / nLRange;	
	
	//adjust study window height, as necessary
	if ( nBarCounter > (nTotalBars-(nMaxBars/3))) {
		if ( nHigh > nStudyMax ) {
			nStudyMax = nHigh;
			setStudyMax( nStudyMax );
		}
		if ( nLow < nStudyMin ) {
			nStudyMin = nLow;
			setStudyMin( nStudyMin );
		}
	}		
		
	//draw the OHLC bar in the study window		
	drawBar( nOpen, nHigh, nLow, nClose );


}


/*************************************************
             SUPPORT FUNCTIONS                    
**************************************************/   

function drawBar( nO, nH, nL, nC ) {

	drawLineRelative( 0, nL, 0, nH, PS_SOLID, 3, Color.navy, gID() );
	drawLineRelative( 0, nO, 0, nO, PS_SOLID, 5, Color.lime, gID() );
	drawLineRelative( 0, nC, 0, nC, PS_SOLID, 5, Color.red, gID() );	
	
}
	

function HLAverage( nBars ) {
var x = 0;
var nTmp = 0;

	while ( x<nBars ) {
		nTmp += ( high(-x) + low(-x) ) / 2;
		x++;
	}
	
	return( nTmp/nBars );
	
}    
 
    
function Average( Arr, nBars ) {
var x = 0;
var nTmp = 0;

	while ( x<nBars ) {
		nTmp += Arr[x];
		x++;
	}
	
	return( nTmp/nBars );
	
}    
    
function Highest( nBars, nOffset ) {
var x = nOffset;
var nTmp = -9999999999.0;

	while ( x<nBars+nOffset ) {
		nTmp = Math.max( nTmp, high(-(x)) );
		x++;
	}
	
	return( nTmp );
	
}    

function Lowest( nBars, nOffset ) {
var x = nOffset;
var nTmp = 9999999999.0;

	while ( x<nBars+nOffset ) {
		nTmp = Math.min( nTmp, low(-(x)) );
		x++;
	}
	
	return( nTmp );
	
}    

    
//== gID function assigns unique identifier to graphic/text routines
function gID() {
    grID ++;
    if ( grID>nMaxBars ) grID = 0;
    return( grID );
}

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  #2 (permalink)
manictrader
london
 
Posts: 3 since Jun 2014
Thanks Given: 0
Thanks Received: 0

I have tried many things but still no luck

Basically I want to change the colour of this

drawLineRelative( 0, nO, 0, nO, PS_SOLID, 5, Color.lime, gID() );

to red if it crosses the -8 line

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  #3 (permalink)
 
loschle's Avatar
 loschle 
Rheinland-Pfalz,Germany
 
Experience: Intermediate
Platform: eSignal
Broker: IB, eSignal
Trading: ES,EUR/USD,forex
Posts: 5 since Nov 2010
Thanks Given: 15
Thanks Received: 3


I am not sure if I understand what you need.
But if you want the study to look like this:

then look to attached x.efs
You can identify the changes in the "drawBar" function.
Hope it help a bit.

Attached Files
Elite Membership required to download: x.efs
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  #4 (permalink)
manictrader
london
 
Posts: 3 since Jun 2014
Thanks Given: 0
Thanks Received: 0

Hi Thanks, that worked perfectly.

Really appreciate the help there!!

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Last Updated on June 20, 2014


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