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**ACM** · 09-13-2008, 12:08 PM

Re: mulitple trend EFS issues

virgiliodi
There are several errors in the script you posted. Attached is the same script with comments explaining these errors and suggesting how to correct them. Once you implement the suggested changes the formula should work fine
Alex

Originally posted by virgiliodi
Having problems getting this to pass the first step of "red face" test upon uploading this to the EFS screener. I copied this, I think, word tick scratch and itch, from STocks Commodity magazine , Sept. Issue.

However, it says I have issues with ";" 's in the first line of program?

Also, the program automatically starts in January of 2008 and seems not to give any options for starting the lines at any other dates?

I surmise that since Esignal hasn't listed this yet in the Stocks/Commodities library that they are also having issues getting this formulae to work?

lost cause? Help? If the file is not readable please let me know and i will post the entire thing here via cut and paste.

Thanks ahead of time.

Attached Files

formula-2.doc (35.0 KB, 164 views)

**virgiliodi** · 09-13-2008, 10:12 PM

still getting all sorts of check errors, i.e. line four error
with " around MIDAS not registering. quotes around
/ on dates not registering, missing ; all over the place,
and missing (

when i made the changes , I think I made the changes suggested.

thanks again, don't know why default is listed as January 2008, should be no default date as you want to pick the high or low point , which is different for each chart?

thanks
VID

function preMain(){
setPriceStudy(true);
setStudyTitle("MIDAS");
setCursorLabelName("MIDAS");
setDefaultBarFgColor(Color.blue);
setDefaultBarThickness(1);

var fp1 = new FunctionParameter("StartDate",
FunctionParameter.STRING);
fp1.setName("Start Date (mm.dd.yyyy)");
fp1.setDefault("1/2/2008");
var fp2 = new FunctionParameter("StartTime",
FunctionParameter.STRING);
fp2.setName("Start Time hh:mm (use 00.00 if Daily)");
fp2.setDefault("00:00");
}

var bVersion =null;
var bInit = false;
var xDay;
var xMonth;
var xYear;
var xHour;
var xMinute;
var xMP= null;
var xVolume = null;
var Cumvol = 0;
var CumVol_1=0;
var CumPriceVol=0;
var cumPriceVol_1=0;
var CumVolAtStart=0;
var CumPriceVolAtStart=0;
var BarCounter=0;
var Start=false;

function main(StartDate,StartTime){
if (bVersion==null) bVersion = verify();
if (bVersion==false) return;
if(bInit==false){
var xStartDate = StartDate.split("/");
var xStartTime = StartTime.split(":")
xMonth = xStartDate[0];
xDay = xStartDate[1];
xYear = xStartDate[2];
xHour = xStartTime[0];
xMinute = xStartTime[1];
xMP = hl2();
xVolume = volume();
bInit = true;
}
var nBarState = getBarState();
if(nBarState==BARSTATE_NEWBAR){
CumVol_1=CumVol;
CumPriceVol_1=CumPriceVol;
if(Start==true) BarCounter++;
}
var nVolume = xVolume.getValue(0);
var nMP = xMP.getValue(0);
if(nVolume==null || nMP==null) return;
if(getCurrentBarCount()==1){
CumVol = nVolume;
CumPriceVol = nMP*nVolume;
}else{
CumVol = CumVol_1+nVolume;
CumPriceVol = CumPriceVol_1+(nMP*nVolume);
}
if(Start==false && month(0)==xMonth && day(0)==xDay &&
year(0)==xYear && hour(0)==xHour && minute(0)==xMinute) {
CumVolAtStart = CumVol-nVolume;
CumPriceVolAtStart = CumPriceVol-(nMP*nVolume);
Barcounter=1;
Start = true;
}
if(BarCounter==0){
return;
}else if(BarCounter==1){
var MIDAS = nMP;
}else if(BarCounter>1){
var Denom = CumVol-CumVolAtStart;
if(Denom==0) Denom = 1;
var MIDAS = (CumPriceVol-CumPriceVolAtStart)/Denom
}
return MIDAS;
}

function verify() {
var b = false;
if (getBuildNumber()<779 {
drawTextAbsolute(5,35,"This study requires version 8.0 or
later.",
Color.white,Color.blue,
Text.RELATIVETOBOTTOM|Text.RELATIVETOLEFT|Text.BOL D|Text.LEFT,
Null, 13, "error");
DrawTextAbsolute(5,20,”Click HERE to
Upgrade.@URL=http://www.esignal.com/download/default.asp”,
Color.white, Color.blue,
Text.RELATIVETOBOTTOM|Text.RELATIVETOLEFT|Text.BOL D|Text.LEFT,
Null, 13, "upgrade");
return b;
} else {
b = true;
}
return b;
}

**ACM** · 09-13-2008, 11:08 PM

VID
Enclosed is your script with comments on the lines causing the errors and suggestions on how to fix them
The default date is just so that the formula will return a plot when you load it in the chart. Through Edit Studies you can change the date at any time while the script is running
Alex

PHP Code:


function preMain(){

   setPriceStudy(true);

   setStudyTitle("MIDAS");

   setCursorLabelName("MIDAS");

   setDefaultBarFgColor(Color.blue);

   setDefaultBarThickness(1);



              var    fp1    =   new   FunctionParameter("StartDate",

FunctionParameter.STRING);

        fp1.setName("Start Date (mm.dd.yyyy)");

        fp1.setDefault("1/2/2008");

              var fp2       =   new   FunctionParameter("StartTime",

FunctionParameter.STRING);

        fp2.setName("Start Time hh:mm (use 00.00 if Daily)");

        fp2.setDefault("00:00");

}



var bVersion    =null;

var bInit = false;

var xDay;

var xMonth;

var xYear;

var xHour;

var xMinute;

var xMP= null;

var xVolume = null;

var Cumvol = 0;

var CumVol_1=0;

var CumPriceVol=0;

var cumPriceVol_1=0;

var CumVolAtStart=0;

var CumPriceVolAtStart=0;

var BarCounter=0;

var Start=false;



function main(StartDate,StartTime){

    if (bVersion==null) bVersion = verify();

    if (bVersion==false) return;

    if(bInit==false){

          var xStartDate = StartDate.split("/");

          var xStartTime = StartTime.split(":")

         xMonth = xStartDate[0];

         xDay = xStartDate[1];

         xYear = xStartDate[2];

         xHour = xStartTime[0];

         xMinute = xStartTime[1];

         xMP = hl2();

         xVolume = volume();

         bInit = true;

}

 var nBarState = getBarState();

 if(nBarState==BARSTATE_NEWBAR){

      CumVol_1=CumVol;

      CumPriceVol_1=CumPriceVol;

      if(Start==true) BarCounter++;

}

 var nVolume = xVolume.getValue(0);

 var nMP = xMP.getValue(0);

 if(nVolume==null  ||  nMP==null) return;

 if(getCurrentBarCount()==1){

    CumVol = nVolume;

    CumPriceVol = nMP*nVolume;

   }else{

     CumVol = CumVol_1+nVolume;

     CumPriceVol = CumPriceVol_1+(nMP*nVolume);

 }

  if(Start==false && month(0)==xMonth && day(0)==xDay &&

year(0)==xYear && hour(0)==xHour && minute(0)==xMinute) {

    CumVolAtStart = CumVol-nVolume;

    CumPriceVolAtStart = CumPriceVol-(nMP*nVolume);

     Barcounter=1;

     Start = true;

 }

  if(BarCounter==0){

     return;

 }else if(BarCounter==1){

     var MIDAS = nMP;

 }else if(BarCounter>1){

     var Denom = CumVol-CumVolAtStart;

     if(Denom==0) Denom = 1;

     var MIDAS = (CumPriceVol-CumPriceVolAtStart)/Denom

 }

   return MIDAS;

}



 function verify() {

      var b = false;

    if (getBuildNumber()<779 {//missing close parenthesis ie if (getBuildNumber()<779) {

        drawTextAbsolute(5,35,"This study requires version 8.0 or later.", Color.white,Color.blue,

                          Text.RELATIVETOBOTTOM|Text.RELATIVETOLEFT|Text.BOLD|Text.LEFT,

                          Null, 13, "error");

        DrawTextAbsolute(5,20,//this should be drawTextAbsolute and not DrawTextAbsolute

                        "Click HERE to Upgrade.@URL=http://www.esignal.com/download/default.asp",

                         Color.white, Color.blue,

                         Text.RELATIVETOBOTTOM|Text.RELATIVETOLEFT|Text.BOLD|Text.LEFT,

                         Null, 13, "upgrade");

        return b;

    } else {

        b = true;

    }

      return b;

}

Originally posted by virgiliodi
still getting all sorts of check errors, i.e. line four error
with " around MIDAS not registering. quotes around
/ on dates not registering, missing ; all over the place,
and missing (

when i made the changes , I think I made the changes suggested.

thanks again, don't know why default is listed as January 2008, should be no default date as you want to pick the high or low point , which is different for each chart?

thanks
VID

function preMain(){
setPriceStudy(true);
setStudyTitle("MIDAS");
setCursorLabelName("MIDAS");
setDefaultBarFgColor(Color.blue);
setDefaultBarThickness(1);

var fp1 = new FunctionParameter("StartDate",
FunctionParameter.STRING);
fp1.setName("Start Date (mm.dd.yyyy)");
fp1.setDefault("1/2/2008");
var fp2 = new FunctionParameter("StartTime",
FunctionParameter.STRING);
fp2.setName("Start Time hh:mm (use 00.00 if Daily)");
fp2.setDefault("00:00");
}

var bVersion =null;
var bInit = false;
var xDay;
var xMonth;
var xYear;
var xHour;
var xMinute;
var xMP= null;
var xVolume = null;
var Cumvol = 0;
var CumVol_1=0;
var CumPriceVol=0;
var cumPriceVol_1=0;
var CumVolAtStart=0;
var CumPriceVolAtStart=0;
var BarCounter=0;
var Start=false;

function main(StartDate,StartTime){
if (bVersion==null) bVersion = verify();
if (bVersion==false) return;
if(bInit==false){
var xStartDate = StartDate.split("/");
var xStartTime = StartTime.split(":")
xMonth = xStartDate[0];
xDay = xStartDate[1];
xYear = xStartDate[2];
xHour = xStartTime[0];
xMinute = xStartTime[1];
xMP = hl2();
xVolume = volume();
bInit = true;
}
var nBarState = getBarState();
if(nBarState==BARSTATE_NEWBAR){
CumVol_1=CumVol;
CumPriceVol_1=CumPriceVol;
if(Start==true) BarCounter++;
}
var nVolume = xVolume.getValue(0);
var nMP = xMP.getValue(0);
if(nVolume==null || nMP==null) return;
if(getCurrentBarCount()==1){
CumVol = nVolume;
CumPriceVol = nMP*nVolume;
}else{
CumVol = CumVol_1+nVolume;
CumPriceVol = CumPriceVol_1+(nMP*nVolume);
}
if(Start==false && month(0)==xMonth && day(0)==xDay &&
year(0)==xYear && hour(0)==xHour && minute(0)==xMinute) {
CumVolAtStart = CumVol-nVolume;
CumPriceVolAtStart = CumPriceVol-(nMP*nVolume);
Barcounter=1;
Start = true;
}
if(BarCounter==0){
return;
}else if(BarCounter==1){
var MIDAS = nMP;
}else if(BarCounter>1){
var Denom = CumVol-CumVolAtStart;
if(Denom==0) Denom = 1;
var MIDAS = (CumPriceVol-CumPriceVolAtStart)/Denom
}
return MIDAS;
}

function verify() {
var b = false;
if (getBuildNumber()<779 {
drawTextAbsolute(5,35,"This study requires version 8.0 or
later.",
Color.white,Color.blue,
Text.RELATIVETOBOTTOM|Text.RELATIVETOLEFT|Text.BOL D|Text.LEFT,
Null, 13, "error");
DrawTextAbsolute(5,20,”Click HERE to
Upgrade.@URL=http://www.esignal.com/download/default.asp”,
Color.white, Color.blue,
Text.RELATIVETOBOTTOM|Text.RELATIVETOLEFT|Text.BOL D|Text.LEFT,
Null, 13, "upgrade");
return b;
} else {
b = true;
}
return b;
}

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mulitple trend EFS issues

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