Globl Variables

[Adina]

Hi, I am sure this is something that is really basic but clearly i am missing something as an inexperienced EFS programmer.

I can get a simple plot onto a chart, But i cannot get it to continue plotting setting the variable to be the same value each bar, until it changes.
I wish it to continue drawing a line, not just a single plot on each occurance.

I have attached some a simple code to illustrate my ignorance!
If anyone can point out the reasons why their help would be much appreciated....thanks.

//TEMPLATE

function preMain() {
setPriceStudy(true);
setStudyTitle("XXX");
setCursorLabelName("upper", 0);

setDefaultBarFgColor(Color.blue, 0);

setDefaultBarThickness(4, 0);

setPlotType(PLOTTYPE_FLATLINES, 0);

}

// Global Variables
var xUpper = null;
var bInit = false;
debugClear

function main() {

//Initialise
if(bInit == false) {

bInit = true;
}


// Validate the study variables to ensure they contain valid data.
if(close(0) == null || close(-1) == null || close(-4) == null || close(-5) == null) {
return; // Exit the formula if variables contain invalid data.
}

if (close(0)>=close(-4) && close(-1)<=close(-5)) {
var xUpper=close(-1);
}

debugPrintln(xUpper);
return xUpper;

}

[ACM]

Re: Globl Variables

Adina
Remove the var from the following line of code
var xUpper=close(-1);
which declares the variable xUpper as a local variable instead of a global variable as you have it initially declared.
Once you make this change the formula should do what I think you are trying to accomplish (see enclosed screenshot)
Alex

Originally posted by Adina
Hi, I am sure this is something that is really basic but clearly i am missing something as an inexperienced EFS programmer.

I can get a simple plot onto a chart, But i cannot get it to continue plotting setting the variable to be the same value each bar, until it changes.
I wish it to continue drawing a line, not just a single plot on each occurance.

I have attached some a simple code to illustrate my ignorance!
If anyone can point out the reasons why their help would be much appreciated....thanks.

//TEMPLATE

function preMain() {
setPriceStudy(true);
setStudyTitle("XXX");
setCursorLabelName("upper", 0);

setDefaultBarFgColor(Color.blue, 0);

setDefaultBarThickness(4, 0);

setPlotType(PLOTTYPE_FLATLINES, 0);

}

// Global Variables
var xUpper = null;
var bInit = false;
debugClear

function main() {

//Initialise
if(bInit == false) {

bInit = true;
}


// Validate the study variables to ensure they contain valid data.
if(close(0) == null || close(-1) == null || close(-4) == null || close(-5) == null) {
return; // Exit the formula if variables contain invalid data.
}

if (close(0)>=close(-4) && close(-1)<=close(-5)) {
var xUpper=close(-1);
}

debugPrintln(xUpper);
return xUpper;

}