EFS Reset--WHY??

[alexmihh]

You have been of great asisstance. Notice how the the data to the right of the orange line is live data that has never been reset since the EFS was loade at 4:50am . But I had to reboot my computer at 4:45 am and lost all the live signals from 2 am to 4:45 am. But I am now able to replace them as they existed.

Per your suggestion I am trying to implement the reloading of saved live signal using the...

"if (getBarState == BARSTATE_ALLBARS) {

I assume the purpose here is to load the missed live data signals ONLY once, at EFS startup, and not at every bar all over again **after** startup.

For now, I am keeping this EFS as a seperate EFS and not part of my live trading EFS, to keep the live trading EFS as simple as possible. I also have includeded green bars to show the limits of the added live trading signals by searching through the data for the highest and lowest rawtime, and then incrementing these bar offsets by one for each new bar

However, I had to rem out the getBarState statement/if because when I used it, it did **not** draw the signals. Why not?

Also, I am trying to keep the green bars shown all the time, but I can not figure out why they disappear after the 2nd bar is loaded -- they stay on for just one bar's duration.

Here is complete EFS. How can I design this so the signals load just once and not at every bar. Then all the EFS has to do after that is keep the green bars visible and increment the bar offsets by one.

/*************************************************************************************************
10:00 pm    09MAR06                LIVELOAD.efs   
**************************************************************************************************
Last fix:
TODO: 
*****************************************************************************************************/
var vVERSION = "1.0xx";
var f = new File("LIVELOAD.txt");
var sCurrentSignalData = null;
var sCurrentSignalDataArray = null;
var sCurrentSignalDataBAR = null;
var sCurrentSignalDataSYM = null;
var sCurrentSignalDataPRI = null;
var vMinBarRAW = 2222222222222;
var vMaxBarRAW = 0;
var vMinBarOffset = null;
var vMaxBarOffset = null;
var bOneFlag = false;

function preMain() {
    setPriceStudy(true);
    setShowCursorLabel(false);
    setComputeOnClose();

    setStudyTitle("Load Live Signals -- v" + vVERSION +  " using LIVELOAD.txt");

// ************** GET EARLIEST/LASTEST BAR LOCATION -- DRAW GREEN LINES BELOW ********************    f.open("rt");
    while(!f.eof()) {
        sCurrentSignalData = f.readln();
        if (sCurrentSignalData != null) {
            sCurrentSignalDataArray = sCurrentSignalData.split("|");
            sCurrentSignalDataBAR = sCurrentSignalDataArray[0];
            if (sCurrentSignalDataBAR < vMinBarRAW) {
                vMinBarRAW = sCurrentSignalDataBAR;
            }
            if (sCurrentSignalDataBAR > vMinBarRAW) {
                vMaxBarRAW = sCurrentSignalDataBAR;
            }

        }
    }
     f.close(); 

} // end PREMAIN

function main() {

//    if (getBarState == BARSTATE_ALLBARS) { // THIS DOES NOT WORK
        f.open("rt");
        while(!f.eof()) {
            sCurrentSignalData = f.readln();
            if (sCurrentSignalData != null) {
                sCurrentSignalDataArray = sCurrentSignalData.split("|");
                sCurrentSignalDataBAR = sCurrentSignalDataArray[0];
                sCurrentSignalDataSYM = sCurrentSignalDataArray[1];
                sCurrentSignalDataPRI = sCurrentSignalDataArray[2];
                if ( rawtime(0) == sCurrentSignalDataBAR ) {
                    drawImageRelative(0, sCurrentSignalDataPRI, sCurrentSignalDataSYM, null, Image.RIGHT | Image.ONTOP, "CM" + rawtime(0));
                }
            }
        }                
         f.close(); 
//    }

    if (rawtime(0) >= vMinBarRAW) {
        vMinBarOffset =    vMinBarOffset + 1
    }

    if (rawtime(0) >= vMaxBarRAW) {
        vMaxBarOffset =    vMaxBarOffset + 1
    }

//    if (getCurrentBarIndex() == 0) {
    if (isLastBarOnChart()) {
        addLineTool(LineTool.VERT, vMinBarOffset * -1, 5, Color.lime, "EARLYBAR");
        addLineTool(LineTool.VERT, vMaxBarOffset * -1, 5, Color.lime, "LASTBAR");
    }


//    setStudyTitle("Load Live Signals -- v" + vVERSION +  " using LIVELOAD.txt. Earliest bar is: " + vMinBarRAW + " ("+ vMinBarOffset*-1 + ") -- RAW = "+ rawtime(0));

} 

Data file

1141870980|SystemCheckMarkBlue|1.2015
1141871220|SystemHappyFace|1.2016
1141871700|SystemCheckMarkBlue|1.2008
1141871820|SystemReallyHappyFace|1.200500000000000 1
1141876740|SystemCheckMarkBlue|1.1999900000000001
1141876860|SystemReallyHappyFace|1.199890000000000 1
1141878780|SystemCheckMarkBlue|1.2008
1141878900|SystemHappyFace|1.2009

[alexmihh]

have I understood your use of

"if (getBarState == BARSTATE_ALLBARS) {

statement correctly??

[eSignal_JasonK]

Hello Alex,

Originally posted by alexmihh on 03-09-2006 at 07:08 PM
You have been of great asisstance. Notice how the the data to the right of the orange line is live data that has never been reset since the EFS was loade at 4:50am . But I had to reboot my computer at 4:45 am and lost all the live signals from 2 am to 4:45 am. But I am now able to replace them as they existed.

Per your suggestion I am trying to implement the reloading of saved live signal using the...

"if (getBarState == BARSTATE_ALLBARS) {

I assume the purpose here is to load the missed live data signals ONLY once, at EFS startup, and not at every bar all over again **after** startup.

For now, I am keeping this EFS as a seperate EFS and not part of my live trading EFS, to keep the live trading EFS as simple as possible. I also have includeded green bars to show the limits of the added live trading signals by searching through the data for the highest and lowest rawtime, and then incrementing these bar offsets by one for each new bar

However, I had to rem out the getBarState statement/if because when I used it, it did **not** draw the signals. Why not?

You miss interpreted my instructions regarding the use of getBarState(). The reason your code does not work with your current check for BARSTATE_ALLBARS is because your routine only checks the current bar that is being process at allbars to see if it had an image, which it doesn't. As each bar is subsequently processed, they are not being checked against the data from your text file because BARSTATE_ALLBARS only occurs once and the beginning of the reset. What I had originally suggested was to open your custom history file and parse all the data into some arrays, then close the file and prevent any new records from being added until your formula is processing bar 0. Now, as the formula processes each bar during the reload, search your array for the rawtime(0) of the bar that is currently being processed. If that value is found, then draw your system image with the corresponding image name and price level.

When you split the text data from each line in the text file you are currently storing the data in some global variables. As each new line is split you are overriding the previous data. What you need to do is change those variables (sCurrentSignalDataBAR, sCurrentSignalDataSYM and sCurrentSignalDataPRI) into arrays. In your parsing routine you would increment a counter variable by one for each new line of text that gets parsed so that each new line of text gets saved to a unique array element so you can use it later. The global declarations for the arrays would look like this.

var sCurrentSignalDataBAR = new Array();
var sCurrentSignalDataSYM = new Array();
var sCurrentSignalDataPRI = new Array(); 

Then change your parsing routine to populate these arrays at BARSTATE_ALLBARS so that this is executed only once when the chart gets reset. You will also remove the drawImage call from this routine. That part will be performed in a separate routine.

// new parsing routine
    if (getBarState == BARSTATE_ALLBARS) { 
        var nCntr = 0;
        f.open("rt");
        while(!f.eof()) {
            sCurrentSignalData = f.readln();
            //debugPrintln(sCurrentSignalData);
            if (sCurrentSignalData != null) {
                sCurrentSignalDataArray = sCurrentSignalData.split("|");
                sCurrentSignalDataBAR[nCntr] = sCurrentSignalDataArray[0];
                sCurrentSignalDataSYM[nCntr] = sCurrentSignalDataArray[1];
                sCurrentSignalDataPRI[nCntr] = sCurrentSignalDataArray[2];
                nCntr++;
            }
        }                
         f.close(); 
    } 

At this point, all of your text file data is stored in those three arrays. Now you will add a separate routine after the allbars routine that checks the rawtime(0) from each bar as the formula continues to reprocess the history one at a time and search through the sCurrentSignalDataBAR array to see if there is a match. If so, then you will use the same array element number as the element that matched the current bar's rawtime(0) return and call the drawImage function using your other arrays. In your search loop, assign the array element number that had a match to some variable such as nNum.

drawImageRelative(0, sCurrentSignalDataPRI[nNum], sCurrentSignalDataSYM[nNum], null, Image.RIGHT | Image.ONTOP, "CM" + rawtime(0));

Also, I am trying to keep the green bars shown all the time, but I can not figure out why they disappear after the 2nd bar is loaded -- they stay on for just one bar's duration.

You only need to draw the lines once when the reload process has completed. Try changing the condition to the following and see if this fixes the problem. Note that I used your bOneFlag variable that was not being used.

//
    if (bOneFlag == false) {
        if (rawtime(0) >= vMinBarRAW) {
            vMinBarOffset =    vMinBarOffset + 1
        }    
        if (rawtime(0) >= vMaxBarRAW) {
            vMaxBarOffset =    vMaxBarOffset + 1
        }
    }

    if (bOneFlag == false && isLastBarOnChart()) {
        addLineTool(LineTool.VERT, vMinBarOffset * -1, 5, Color.lime, "EARLYBAR");
        addLineTool(LineTool.VERT, vMaxBarOffset * -1, 5, Color.lime, "LASTBAR");
        bOneFlag = true;
    } 

[alexmihh]

In implementing your method to save live signals to text file with, for instance, Euro Futures text file, why do I get price values that have many zeros in them and others that do not??


1142791140|SystemCheckMarkBlue|1.2245000000000001| EUR1
1142791200|SystemReallyHappyFace|1.22439|EUR1
1142793000|SystemCheckMarkBlue|1.2238900000000001| EUR1
1142507700|SystemReallyHappyFace|1.2237|EUR1
1142508480|SystemCheckMarkBlue|1.2248|EUR1

[eSignal_JasonK]

Hello Alex,

That is because of JavaScript's floating point (and other languages also) represention of numbers (see this article on .toFixed() in the Core JavaScript Guide in the EFS KnowledgeBase).