my Array works but...

[arsond]

Hello,

I've defined two variables, one is calculated and plots fine as a non-price study. The other is supposed to be an ema of the series and it also plots but it is not scaled correctly.

How can I correct this?

Also, I've got bbs and ema script in the preMAin()

Thanks!

// this part is in the pre main.
var vVSI = null;
var vEma = null;

}

function main() {
//returns the series for VSI
vVSI = (ema(6) - lowerBB(20,2)) - (upperBB(20,2) - ema(6));
vEma = ema(6, vVSI);
return new Array (vVSI, vEma);

}

[Guest]

Re: my Array works but...

Hi arsond,

try something like this

{
// this part is in the pre main.

}
//~ global variables must be declared outside any functions
var vVSI = null;
var vEma = null;
var bInit=false;

function main() {
    if(!bInit){
        vVSI = efsInternal("myVSI"); //~ returns the series for VSI
        vEma = ema(6, vVSI);
        bInit=true;
    }
    return new Array (vVSI, vEma);
}

function myVSI(){
    var myEMA6=ema(6); // ~ saves it from being calculated twice
    return ((myEMA6 - lowerBB(20,2)) - (upperBB(20,2) - myEMA6));
} 

Take a look at the efs2 links below and in the EFS Knowledgebase. Hope this helps.

Steve

Originally posted by arsond
Hello,

I've defined two variables, one is calculated and plots fine as a non-price study. The other is supposed to be an ema of the series and it also plots but it is not scaled correctly.

How can I correct this?

Also, I've got bbs and ema script in the preMAin()

Thanks!

// this part is in the pre main.
var vVSI = null;
var vEma = null;

}

function main() {
//returns the series for VSI
vVSI = (ema(6) - lowerBB(20,2)) - (upperBB(20,2) - ema(6));
vEma = ema(6, vVSI);
return new Array (vVSI, vEma);

}

[waynecd]

Forgive the intrusion but I think "getSeries" needs to be added for it to plot by replacing:

        vVSI = efsInternal("myVSI"); //~ returns the series for VSI
vEma = ema(6, vVSI); 

with

        vVSI = getSeries(efsInternal("myVSI")); //~ returns the series for VSI
vEma = getSeries(ema(6, vVSI)); 

wayne

[arsond]

thanks!

Thanks gentlemen! I implimented parts from both and it works. I'm still learning the efs syntax and this feedback was very helpful.

Thanks again!

Carson