sma - no properties

[paulm]

Hi

I have written this very simple efs but get the error myStudy1 has no properies!

I want to plot the 55 sma and the 55 sma + 0.0055

HELP!

Much appreciated

Paul

===================

var bInit = false;
var myStudy1 = null;
var myStudy2 = null;


function preMain() {

setPriceStudy(true);

}

function main () {

var myVar1;
var myVar2;

if (bInit == false) {
myStudy1 = sma(55,(high+low)/2);
myStudy2 = sma(55,(high+low)/2+0.0055);
bInit = true;
}
myVar1 = myStudy1.getValue(0);
myVar2 = myStudy2.getValue(0);

return new Array(myVar1,myVar2);

}

[ACM]

Paul
(high()+Low())/2 and (high+low)/2+0.0055 are not series but single values and cannot therefore be used as a source for the built-in studies.
With regards to (high+low)/2 you can replace that with hl2() which returns a series and can be used as a source. As far as (high+low)/2+0.0055 is concerned you will need to calculate that equation in a separate function which you then call into main using efsInternal(). This will in turn create the series that you can then use as a source to the built-in sma() function.
You can find several examples on how to use efsInternal() and efsExternal() in this thread
Alex

[paulm]

Alex

Thanks again for your help all looks a bit confusing at first but i'll print it all out and read it

))