Buttons to change the variables in EFS

[gautama2]

Hello,
i found the edit_buttons.efs with programed buttons in the indichart to change the variable of an MA.
I tried to implement this in the ITL.efs but do not get it done.
In edit_buttons.efs the variable "study" is used and some other stuff i don't understand and i don't know why and how to implement this in a given formula. Isn't it enough to change the variable (x for example) that is given over to the main function (function main(x) and put the code for checking if a button is clicked and change x value in the main too?

Perhaps someone could write it for the ITL.efs or any other example so i grasp it better?
I want to be able to provide any efs with these buttons or better with a slidebar (but i didn't find a comand). In Amibroker i find it very useful to do so, as one can find the correct figures faster.

Regards Robert

[eSignal_JasonK]

Hello Robert,

Please post the current version of the ITL.efs you're trying to modify and I'll take a look.

[gautama2]

Hi Jason,
first i made a mistake, i was trying to change the Gravity.efs not ITL.efs.

Goes like this:
/************************************************** *****************
Description : This Indicator plots Gravity oscillator
Provided By : Developed by TS Support, LLC for eSignal. (c) Copyright 2002
************************************************** ******************/


function preMain() {

setStudyTitle("Center of Gravity Oscillator");
setPriceStudy(false);
setDefaultBarFgColor(Color.red, 1);
setDefaultBarFgColor(Color.blue, 0);
setComputeOnClose();
}
var cg_1 = 0;

function main(Length) {
if(Length == null)
Length = 10;

var count = 0;
var num = 0;
var cg;
var temp;
var denom = 0;
var vHigh = getValue("high", 0, -Length);
var vLow = getValue("low", 0, -Length);


if(vHigh == null || vLow == null) {
return;
}

for(count = 0; count < Length - 1; count++) {
num += (1 + count) * ((vHigh[count] + vLow[count])/2);
denom += (vHigh[count] + vLow[count])/2;
}

if(denom != 0)
cg = - num/denom;

temp = cg_1;
if (getBarState() == BARSTATE_NEWBAR)
cg_1 = cg;

return new Array(cg,temp);

}

Regards
Robert

[eSignal_JasonK]

Hello Robert,

The attached formula should do what you need. Compare this code to Edit_Buttons.efs to see how the Gravity.efs study was incorporated.

[gautama2]

Thank you Jason,

this is a great help for me.

Regards
Robert