Up/Down Bar Counter

[Himalaya]

Is there an efs that counts up bars vs down bars that starts counting with the first (9:30 EST) bar of the day?

If not, could someone kindly code it?

[ACM]

Himalaya
The enclosed efs should do what you requested.
It is set to compute only on the close of a bar so the current bar will show no counts in the Cursor Window
Alex

function preMain(){

setPriceStudy(true);
setStudyTitle("UP-DN Bar Counter");
setCursorLabelName("UP bars",0);
setCursorLabelName("DN bars",1);
setDefaultBarFgColor(Color.blue,0);
setDefaultBarFgColor(Color.red,1);
setComputeOnClose();

}

var vCntrUP = 0;
var vCntrDN = 0;

function main(){

if((getHour()*100)+getMinute()==930){
    vCntrUP=0;
    vCntrDN=0;
}

if(close(0)>open(0)){
    vCntrUP ++
}
if(close(0)<open(0)){
    vCntrDN ++
}


return new Array (vCntrUP+"",vCntrDN+"");
} 

[plucky]

hi Alex,

I saw that you have close(0) & open(0) in your code. I 'd like to know why you have those 0's instead of close() & open()

trying to learn,

TIA

[Himalaya]

Thanks Alex

Excellent as always!

[ACM]

Himalaya
My pleasure as always

plucky
It doesn't actually make a difference if close() or close(0) are used in this instance (same for open, high, low, etc). However in efs2 (which is in alpha testing at this time - no release date) it is better to explicitly reference the bar since close() by itself actually gains more functionality and may lead to unintended side effects when assigning it to a variable.

Alex

[theplumber]

Am I missing something here? Is this a standalone efs or is this a function for another efs? Nothing shows up on the screen in realtime.

[ACM]

plumber
It is a standalone efs. It will not plot anything on the chart but will write in the Cursor Window the number of Up and Down bars since 9:30 (no numbers are shown for the current ie last bar)
Alex

[theplumber]

I see, thanks. Now I have another question, I'm trying to get it to plot by histogram and looks like I just butchered the code instead. What am I missing?

[ACM]

plumber
As I wanted to display the values only in the Cursor Window and not in the chart I converted the returned values to strings which a chart does not plot. In line 36 of the image you posted you will see that in the return new Array() statement there is a +"" added to each element which converts it to a string.
Replace that line with the following and you will get a plot
return new Array (vCntrUP,vCntrDN);
Alex

[Mr.Hoo]

Himalaya
The enclosed efs should do what you requested.
It is set to compute only on the close of a bar so the current bar will show no counts in the Cursor Window
Alex

function preMain(){

setPriceStudy(true);
setStudyTitle("UP-DN Bar Counter");
setCursorLabelName("UP bars",0);
setCursorLabelName("DN bars",1);
setDefaultBarFgColor(Color.blue,0);
setDefaultBarFgColor(Color.red,1);
setComputeOnClose();

}

var vCntrUP = 0;
var vCntrDN = 0;

function main(){

if((getHour()*100)+getMinute()==930){
vCntrUP=0;
vCntrDN=0;
}

if(close(0)>open(0)){
vCntrUP ++
}
if(close(0)<open(0)){
vCntrDN ++
}


return new Array (vCntrUP+"",vCntrDN+"");
} 

Thank you ACM for this help.
Can this code work on eSignal V.12 too? I'm asking because you wrote it in 2004.
And this code is going to show all previous Up/Down bars at a specific time on Cursor Window?

Best Regards