need assistance w/simple formula

[joemas]

I need a formula that gives me alarms each time the price of a stock reaches a point near the bottom of the bollinger bands during the day with live data using esignal. Also I don't know how to put the formula in esignal to get it to work. Please advise. I can pay or trade services ( I am a cpa who helps people with IRS problems)
The formula will take the high and the low of the bollinger bands. When the price is approx. 15% of the distance off the bottom toward the top the alarm will ring. The variables I can change need to be the 15% and the number of periods in the BB.
You can email me at [email protected] with questions.
Thanks - Joe Mastriano

[joemas]

55 views and no help?an I doing something wrong. I switched from qcharts to esignal because of the ability to do formulas for alerts. Can someone please direct me since no one seems to have the answer. Thanks

[emet]

Joe,

It seems I already have almost what you need. I've modified my script and now you can use it for your trading! Please let me know if this helps.

Yours EMET

//Developed by EMET
//Bollinger Bands Alert

/*
I need a formula that gives me alarms each time the price of a stock reaches a
point near the bottom of the bollinger bands during the day with live data using
esignal. Also I don't know how to put the formula in esignal to get it to work.
Please advise. I can pay or trade services ( I am a cpa who helps people with IRS
problems)
The formula will take the high and the low of the bollinger bands. When the price
is approx. 15% of the distance off the bottom toward the top the alarm will ring.
The variables I can change need to be the 15% and the number of periods in the BB.
*/

var fpArray = new Array();
var bInit = false;
var BBUp = null;
var BBDn = null;
var BBMid = null;
var SignalFlag = true;

function preMain() {

    setPriceStudy(true);
    setStudyTitle("Bollinger Bands Alert");    
//Lines Parametr
    setCursorLabelName("Up", 0);
    setCursorLabelName("Down", 1);
    setCursorLabelName("Middle", 2);

    setDefaultBarFgColor(Color.green, 0);
    setDefaultBarFgColor(Color.green, 1);
    setDefaultBarFgColor(Color.blue, 2);
        
    setPlotType(PLOTTYPE_LINE, 0); 
    setPlotType(PLOTTYPE_LINE, 1); 
    setPlotType(PLOTTYPE_LINE, 2); 
    
    setDefaultBarThickness(2, 0);
    setDefaultBarThickness(2, 1);
    setDefaultBarThickness(1, 2);
    
//Other parametr
    askForInput();
    
    var x=0;
    fpArray[x] = new FunctionParameter("Length_BB", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setLowerLimit(1);        
        setDefault(20);
    }

    fpArray[x] = new FunctionParameter("Standard_deviations", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setLowerLimit(1);        
        setDefault(2);
    }

    fpArray[x] = new FunctionParameter("Percent", FunctionParameter.NUMBER);
    with(fpArray[x++]){
        setLowerLimit(1);        
        setDefault(15);
    }

    fpArray[x] = new FunctionParameter("SignalSoundUP", FunctionParameter.STRING);
    with(fpArray[x++]){
        setDefault("signal.wav");
    }    
    fpArray[x] = new FunctionParameter("SignalSoundDOWN", FunctionParameter.STRING);
    with(fpArray[x++]){
        setDefault("signal.wav");
    }    
    fpArray[x] = new FunctionParameter("Sound_ON_OFF", FunctionParameter.BOOLEAN);
    with(fpArray[x++]){
        setDefault(false);
    }    

   
}

function main(Length_BB, Percent, Standard_deviations, SignalSoundUP, SignalSoundDOWN, Sound_ON_OFF) {
var nBBUp, nBBDn, nBBMid;
var Percent_100, Percent_real, Percent_tmp;
var Color_ = Color.grey;

   //Initialization
   if ( bInit == false ) { 
        debugPrintln("Im start");
        BBUp  = upperBB(Length_BB, Standard_deviations);
        BBDn  = lowerBB(Length_BB, Standard_deviations);
        BBMid = middleBB(Length_BB, Standard_deviations);
      bInit = true; 
    } 

   nBBUp  = BBUp.getValue(0);
   nBBDn  = BBDn.getValue(0);
   nBBMid = BBMid.getValue(0);
  
   if (nBBUp == null || nBBDn == null || nBBMid == null) return;
  
   Percent_tmp = 0;
   Percent_100  = nBBUp - nBBDn;
 
   if (close(0) > nBBDn && close(0) < nBBUp) {
     Percent_real = nBBUp-close(0);
   }

   Percent_tmp = (Percent_real * 100) / Percent_100;
 
   
   if (Percent_tmp > 100 - Percent) {
     if (SignalFlag == true) {
       Alert.addToList(getSymbol(), Percent + "% from Lower BB", Color.white, Color_ );     
       if(SignalSoundUP != null && Sound_ON_OFF == true) {
         Alert.playSound(SignalSoundUP);
       }
       SignalFlag = false;
     } 
   }

   if (Percent_tmp < Percent) {
     if (SignalFlag == true) {
       Alert.addToList(getSymbol(), Percent + "% from Upper BB", Color.white, Color_ );     
       if(SignalSoundDOWN != null && Sound_ON_OFF == true) {
         Alert.playSound(SignalSoundDOWN);
       }
       SignalFlag = false;
     } 
   }

   if (Percent_tmp < 100 - Percent && Percent_tmp > Percent)
    SignalFlag = true;

   return new Array (nBBUp, nBBDn, nBBMid);
    
} 

[spyder9000]

Hello,

I downloaded this EFS and used it on a few of my charts....however on the Alert Window it does not show the symbol, it only shows the condition that was met.

Does anyone have the code to fix it so that it shows the symbol as well?