study: historical bars

[salska]

Hi,

please see function below for details. What I am trying to do is compare the relative distances between ADX, PDI and NDI and apply some buy/sell rules based on the results.

I would like 5 previous bars of data for ADX, PDI and NDI. What is the syntax for grabbing and referencing these bars? If I can print them to the debug window that will be sufficient and I can plod on my merry way. Thanks for your help.

Regards,

Sal

var study = new ADXDMStudy(14, 14);

function preMain() {
setDefaultBarFgColor(Color.white, 0); // ADX
setDefaultBarFgColor(Color.lightyellow, 1); // PDI
setDefaultBarFgColor(Color.black, 2); // NDI

}

var BarCntr = 0;
function main() {
var vADX = study.getValue(ADXDMStudy.ADX);
var vPDI = study.getValue(ADXDMStudy.PDI);
var vNDI = study.getValue(ADXDMStudy.NDI);


debugPrintln("vNDI Historical values: " + vNDI(0) + " , " + vNDI(-1) + " , " .... etc );

return new Array(vADX, vPDI, vNDI);
}

[eSignal_JasonK]

Hello salska,

In our Help Examples forum in the EFS Library and Discussion Board, you will find two help formulas that will demonstrate two different ways to accomplish your task.

RefUsage2.efs uses the ref() function to access the historical bar's returned data.

CustomFuncRef.efs will show you how to store your values in an array so that you can refer to the historical bar's data.