using getInterval() with SMA question

[rdehavelyn]

Hi,

When plotting a sma by hard-coding the time interval, I have no issues with what is returned. Works great.

When I try to plot the same sma using getInterval(), I get contracted, wierd compressed data points.

My objective is to grab the interval and use it to plot the sma, so that when the user changes the display interval of a chart, the sma will update and redraw automatically based on the new time parameters.

Any help would be appreciated.

[BTW - is there a simple way to attach a .png file so I could show you what I mean? ]

Ryan.

var cStudyTitle = "TickMA";


    var gInt = getInterval();

//    var vTickSMA = sma(13, sym("$Tick,15"));          // *** this works fine ***
//    var vTickInst  = sma(1, sym("$Tick,15"));

    var vTickSMA = sma(13, sym("$Tick,gInt"));          // *** this does not  ***
    var vTickInst  = sma(1, sym("$Tick,gInt"));

    var bInt = false;
    
    var fpArray = new Array();
    
    
function preMain() {

    debugClear();

    setComputeOnClose(true)
    setPriceStudy(false);
    setStudyTitle(cStudyTitle);
    setShowCursorLabel(true);
    setShowTitleParameters(false);


    setCursorLabelName("Tick", 0);
    setDefaultBarStyle(PS_SOLID, 0);
    setDefaultBarFgColor(Color.red, 0);
    setDefaultBarThickness(3, 0);
    setPlotType(PLOTTYPE_LINE, 0);

    setCursorLabelName("TickInst", 1);
    setDefaultBarStyle(PS_DOT, 1);
    setDefaultBarFgColor(Color.green, 1);
    setDefaultBarThickness(2, 1);
    setPlotType(PLOTTYPE_LINE, 1);

}

function main() {
   
    if(!bInt) {

    //       debugClear();
      bInt = true;
        
    }
 
    var Tick = vTickSMA.getValue(0);
    if (Tick == null) return;
    
    var TickInst = vTickInst.getValue(0);
    if (TickInst == null) return;



return new Array (Tick, TickInst);

} 

[ACM]

Re: using getInterval() with SMA question

Ryan
The error is in these two lines of code
var vTickSMA = sma(13, sym("$Tick,gInt"));
var vTickInst = sma(1, sym("$Tick,gInt"));
that should instead be
var vTickSMA = sma(13, sym("$Tick,"+gInt));
var vTickInst = sma(1, sym("$Tick,"+gInt));
That said you do not need to pass the interval if this is the same as that of the chart IOW you could write those two lines as follows
var vTickSMA = sma(13, sym("$Tick"));
var vTickInst = sma(1, sym("$Tick"));
Alex

Originally posted by rdehavelyn
Hi,

When plotting a sma by hard-coding the time interval, I have no issues with what is returned. Works great.

When I try to plot the same sma using getInterval(), I get contracted, wierd compressed data points.

My objective is to grab the interval and use it to plot the sma, so that when the user changes the display interval of a chart, the sma will update and redraw automatically based on the new time parameters.

Any help would be appreciated.

[BTW - is there a simple way to attach a .png file so I could show you what I mean? ]

Ryan.

var cStudyTitle = "TickMA";


    var gInt = getInterval();

//    var vTickSMA = sma(13, sym("$Tick,15"));          // *** this works fine ***
//    var vTickInst  = sma(1, sym("$Tick,15"));

    var vTickSMA = sma(13, sym("$Tick,gInt"));          // *** this does not  ***
    var vTickInst  = sma(1, sym("$Tick,gInt"));

    var bInt = false;
    
    var fpArray = new Array();
    
    
function preMain() {

    debugClear();

    setComputeOnClose(true)
    setPriceStudy(false);
    setStudyTitle(cStudyTitle);
    setShowCursorLabel(true);
    setShowTitleParameters(false);


    setCursorLabelName("Tick", 0);
    setDefaultBarStyle(PS_SOLID, 0);
    setDefaultBarFgColor(Color.red, 0);
    setDefaultBarThickness(3, 0);
    setPlotType(PLOTTYPE_LINE, 0);

    setCursorLabelName("TickInst", 1);
    setDefaultBarStyle(PS_DOT, 1);
    setDefaultBarFgColor(Color.green, 1);
    setDefaultBarThickness(2, 1);
    setPlotType(PLOTTYPE_LINE, 1);

}

function main() {
   
    if(!bInt) {

    //       debugClear();
      bInt = true;
        
    }
 
    var Tick = vTickSMA.getValue(0);
    if (Tick == null) return;
    
    var TickInst = vTickInst.getValue(0);
    if (TickInst == null) return;



return new Array (Tick, TickInst);

} 

[rdehavelyn]

Alexis... that did it. Thanks very much for you help.

We all appreciate your invaluable tutelage and the time / energy you direct towards helping members of this forum.

Thank-you!

Regards,
Ryan.

[ACM]

Ryan
You are most welcome and thank you for the appreciation
Alex

Originally posted by rdehavelyn
Alexis... that did it. Thanks very much for you help.

We all appreciate your invaluable tutelage and the time / energy you direct towards helping members of this forum.

Thank-you!

Regards,
Ryan.