Histogram

[brianb]

Is it possible to only show a histogram for an area such as greater than 100 or less than -100 ? I can't seem to get it to display the way I want in this EFS.


var study = new CCIStudy(14, "(H+L+C)/3");

function preMain() {
setCursorLabelName("CCI");
setStudyTitle("CCI Histo 14");

//addBand(250.0, PS_SOLID, 1, Color.black);
addBand(0.0, PS_SOLID, 1, Color.grey);
//addBand(-250.0, PS_SOLID, 1, Color.black);
}

function main() {
setPlotType(PLOTTYPE_HISTOGRAM );
setDefaultBarThickness(4,0);

if (study.getValue(CCIStudy.CCI)>0)
{setDefaultBarFgColor(Color.RGB(0,100,255),0);}

if (study.getValue(CCIStudy.CCI)<0)
{setDefaultBarFgColor(Color.red,0);}

return study.getValue(CCIStudy.CCI);
}

[ACM]

brianb
Modify the values in setStudyMax() and setStudyMin() to ones of your choice.
Also applied some corrections to the efs with comments
Alex

var study = new CCIStudy(14, "HLC/3"); //this has been corrected

function preMain() {
setCursorLabelName("CCI");
setStudyTitle("CCI Histo 14");
setPlotType(PLOTTYPE_HISTOGRAM ); //this has been moved
setDefaultBarThickness(4,0); //this has been moved
setStudyMax(100); //this will set the upper limit of the window
setStudyMin(-100); //this will set the lower limit

//addBand(250.0, PS_SOLID, 1, Color.black);
addBand(0.0, PS_SOLID, 1, Color.grey);
//addBand(-250.0, PS_SOLID, 1, Color.black);
}

function main() {

if (study.getValue(CCIStudy.CCI)>0) 
{setBarFgColor(Color.RGB(0,100,255));} //this has been corrected

if (study.getValue(CCIStudy.CCI)<0) 
{setBarFgColor(Color.red);} //this has been corrected

return study.getValue(CCIStudy.CCI);
} 

[dloomis]

hmmm, I always just returned +100 and -100

ie

return new Array(cc, 100, -100)

This way lines can be drawn at those levels also, but I suppose addBand does the same thing.

[brianb]

Alex
Thanks for cleaning up the formula but it is not yet displaying what I was attempting to do. I should have been more clear in describing my goal.
I would like to merge the histogram with a 14 period HLC/3 CCI study and have the histogram only display values over 100 and under -100, leaving the zone between these 2 points histogram free. Is this possible?

Also
I loaded the revised histogram efs along with the original one and merged them with identical CCI studies and noticed the new histogram is overshooting the CCI study line. I reloaded and experimented with the min max values but could not get it to display correctly. Any thoughts on this?

Bottom pane is original, middle pane is revised version.

[dloomis]

//edited

var study = new CCIStudy(14, "HLC/3"); //this has been corrected

function preMain() {
setCursorLabelName("CCI");
setStudyTitle("CCI Histo 14");
setPlotType(PLOTTYPE_HISTOGRAM ); //this has been moved
setDefaultBarThickness(4,0); //this has been moved
setStudyMax(100); //this will set the upper limit of the window
setStudyMin(-100); //this will set the lower limit

//addBand(250.0, PS_SOLID, 1, Color.black);
addBand(0.0, PS_SOLID, 1, Color.grey);
//addBand(-250.0, PS_SOLID, 1, Color.black);
}

function main() {

if (study.getValue(CCIStudy.CCI)>100) {
{setBarFgColor(Color.RGB(0,100,255)); //this has been corrected
return study.getValue(CCIStudy.CCI);
}

if (study.getValue(CCIStudy.CCI)<-1000) {
setBarFgColor(Color.red);} //this has been corrected
return study.getValue(CCIStudy.CCI);
}
}

[brianb]

The overshooting is gone but so is the red histogram.

On the plus side the histogram only prints if values equal or exceed +100.

[dloomis]

var study = new CCIStudy(14, "HLC/3"); //this has been corrected

function preMain() {
setCursorLabelName("CCI");
setStudyTitle("CCI Histo 14");
setPlotType(PLOTTYPE_HISTOGRAM ); //this has been moved
setDefaultBarThickness(4,0); //this has been moved
setStudyMax(100); //this will set the upper limit of the window
setStudyMin(-100); //this will set the lower limit

//addBand(250.0, PS_SOLID, 1, Color.black);
addBand(0.0, PS_SOLID, 1, Color.grey);
//addBand(-250.0, PS_SOLID, 1, Color.black);
}

function main() {

if (study.getValue(CCIStudy.CCI)>100) {
{setBarFgColor(Color.RGB(0,100,255)); //this has been corrected
return study.getValue(CCIStudy.CCI);
}

if (study.getValue(CCIStudy.CCI)<-100) {
setBarFgColor(Color.red);} //this has been corrected
return study.getValue(CCIStudy.CCI);
}
}

[ACM]

brianb
The enclosed efs plots blue and red histogram bars only if CCI is above 100 or below -100 respectively.
I have taken out the setStudyMax() and setStudyMin() so that in the overlay you get the same scales between studies hence no overshoot.
Alex

var study = new CCIStudy(14, "HLC/3"); 

function preMain() {
setCursorLabelName("CCI");
setStudyTitle("CCI Histo 14");
setShowCursorLabel(false); //comment this line if you want to see the value in the Cursor Window
setPlotType(PLOTTYPE_HISTOGRAM ); 
setDefaultBarThickness(4,0); 
addBand(0.0, PS_SOLID, 1, Color.grey);

}

function main() {

if (study.getValue(CCIStudy.CCI)>100)
setBarFgColor(Color.RGB(0,100,255));

else if(study.getValue(CCIStudy.CCI)<-100) 
setBarFgColor(Color.red);

else if (1==1)
return ;

return study.getValue(CCIStudy.CCI);

} 

[brianb]

That fixed it. Thanks Alex and dloomis. Too bad there isn't a way to tell it to start printing from a point of choice like + or - 100 only.

[ACM]

brianb
There actually is a way by adding a few lines to the efs.
Alex

var study = new CCIStudy(14, "HLC/3"); 
var vHist1 = 100;
var vHist2 = -100;

function preMain() {
setCursorLabelName("CCI");
setStudyTitle("CCI Histo 14");
setShowCursorLabel(false); //comment this line if you want to see the value in the Cursor Window
setPlotType(PLOTTYPE_HISTOGRAM ,0); 
setPlotType(PLOTTYPE_HISTOGRAM ,1);
setPlotType(PLOTTYPE_HISTOGRAM ,2);
setDefaultBarThickness(4,0); 
setDefaultBarThickness(4,1); 
setDefaultBarThickness(4,2); 
setDefaultBarFgColor(Color.black,0);
setDefaultBarFgColor(Color.white,1);
setDefaultBarFgColor(Color.white,2);
addBand(0.0, PS_SOLID, 1, Color.grey);

}

function main() {

if (study.getValue(CCIStudy.CCI)>100)
setBarFgColor(Color.blue,0);

else if(study.getValue(CCIStudy.CCI)<-100) 
setBarFgColor(Color.red,0);

else if (1==1)
return ;

return new Array (study.getValue(CCIStudy.CCI),vHist1,vHist2);

}