Custom Open/Close on Intraday chart

[maninjapan]

I am trying to create an Indicator that tracks the difference between open/Close based on custom times to display on an intraday chart. I am able to show just the open or the close, but seem to be getting something wrong when I try to display the difference. Below is the code as I currently have it (not working). Have I just made a couple of small errors here, or am I way off track?

Thanks in Advance

function preMain() {
    setPriceStudy(false);
    setStudyTitle("ES BASE Price");
    setCursorLabelName("ES BASE Price", 0);
    setDefaultBarStyle(PS_SOLID, 0);
    setDefaultBarFgColor(Color.red, 0);
    setDefaultBarThickness(2, 0);
    setPlotType(PLOTTYPE_LINE, 0);
}
    var DOpen=null
    var DClose=null
    var NKD_sym = "NKD U2";

function main (){

    
    if (getHour(0,sym(NKD_sym)) == 8 && getMinute(0,sym(NKD_sym)) == 30-getInterval(0,sym(NKD_sym))) { // Is your 8:30am-inv bar
    DOpen= close(0,sym(NKD_sym));
    }
    
        if (getHour(0,sym(NKD_sym)) == 20 && getMinute(0,sym(NKD_sym)) == 0-getInterval(0,sym(NKD_sym))) { // Is your 8:30am-inv bar
    DClose= close(0,sym(NKD_sym)) - DOpen();
    }
    
  

    return DClose;
}

[maninjapan]

Still looking for a solution to this. Is anyone able to assist?

Thanks!!

[waynecd]

The problem is that you are subtracting an interval from a time, as in:

if (getHour(0,sym(NKD_sym)) == 20 && getMinute(0,sym(NKD_sym)) == 0-getInterval(0,sym(NKD_sym))) { 

So subtracting a 3 minute interval from a time of 20 hours and 00 minutes should give you 1957 but your equation results in 20==20 for hours and 0==-3 for minutes (or something like that).

Correcting the time equation becomes complicated but can be done.

However, since you want the close of the previous bar of the passed symbol & interval try the following to see if it fits your needs:

//instead of subtracting an interval from the minutes get the close of the previous bar when the start or end times are reached
debugClear();
function preMain(){
    setPriceStudy(false);
   /* setStudyTitle("ES BASE Price");
    setCursorLabelName("ES BASE Price", 0);
    setDefaultBarStyle(PS_SOLID, 0);
    setDefaultBarFgColor(Color.red, 0);
    setDefaultBarThickness(2, 0);
    setPlotType(PLOTTYPE_LINE, 0);*/
    setCursorLabelName("Open",0);
    setCursorLabelName("Close",1);
    setCursorLabelName("Time",2);
}
    var DOpen=null
    var DClose=null
    var NKD_sym = "NKD U2";
    

function main (){

    //var gt=(getHour(0,sym(NKD_sym))*100)+getMinute(0,sym(NKD_sym)); //sym() is not needed for getHour() & getMinute()

    //the next line of code combines hours & minutes to time without the ":" delimiter as in 2000 instead of 20:00
    var gt=(getHour(0,NKD_sym)*100)+getMinute(0,NKD_sym);
    if (gt == 830) { // Is your 8:30am-inv bar
        DOpen= close(-1,sym(NKD_sym));
        DOpen= close(-1,sym(NKD_sym));
    }
    if (gt == 2000) { // Is your 20:00pm-inv bar
        DClose= close(-1,sym(NKD_sym));
    }
    return [DOpen+"",DClose+"",gt+""];
} 

FWIW: I would use the open of the bar of the start time not the close of the previous bar. As in:

DOpen= open(0,sym(NKD_sym)); 

[waynecd]

The following line of code is duplicated in my previous post. Please delete one of the duplicates if you use the code.

DOpen= close(-1,sym(NKD_sym)); 

[maninjapan]

Thanks Wayne, I believe this is almost what I am after, However what I was trying to do with:

 DClose= close(0,sym(NKD_sym)) - DOpen();

was to return the difference between the 2 prices, creating a custom daily range.

Below is your code as I have it, it almost works however it should only return one value per day, after DClose and should remain the same value till the following day's Dclose.

//instead of subtracting an interval from the minutes get the close of the previous bar when the start or end times are reached
debugClear();
function preMain(){
    setPriceStudy(false);
   setStudyTitle(" BASE Price");
    setCursorLabelName(" BASE Price", 0);
    setDefaultBarStyle(PS_SOLID, 0);
    setDefaultBarFgColor(Color.red, 0);
    setDefaultBarThickness(2, 0);
    setPlotType(PLOTTYPE_LINE, 0);*/
    setCursorLabelName("Open",0);
    setCursorLabelName("Close",1);
    setCursorLabelName("Time",2);
}
    var DOpen=null
    var DClose=null
    var DDiff=null
  
    

function main (){

    //var gt=(getHour(0,sym(NKD_sym))*100)+getMinute(0,sym(NKD_sym)); //sym() is not needed for getHour() & getMinute()

    //the next line of code combines hours & minutes to time without the ":" delimiter as in 2000 instead of 20:00
    var gt=(getHour(0)*100)+getMinute(0);
    if (gt == 830) { // Is your 8:30am-inv bar
        DOpen= close(-1);

    }
    if (gt == 2000) { // Is your 20:00pm-inv bar
        DClose= close(-1);
    }
   
    
    return DClose - DOpen;
}

[waynecd]

//make sure the chart's interval allows for a bar formation at your start and end times
//for example if the chart's interval is 5 minutes and your start time is 829 instead of 830
//"DOpen" won't be assigned a value since "gt" will never equal 829
debugClear();
function preMain(){
    setPriceStudy(false);
    setCursorLabelName("Daily Range",0);
}
var DOpen=null
var DClose=null
var NKD_sym = "NKD U2";
var Ddiff;

function main (){
    if(!isIntraday()) return; //otherwise "gt" won't equal the start and end times 
    var gt=(getHour(0,NKD_sym)*100)+getMinute(0,NKD_sym);
    if (gt == 830) { 
        DOpen= close(-1,sym(NKD_sym));
    }
    if (gt == 2000) {
        DClose= close(-1,sym(NKD_sym));
    }
    Ddiff = DClose - DOpen
    return Ddiff;
}