Alerts for indicators?

[janderson3]

I'm sure that this is a basic question that is easily answered, but I have not found a way to do this. I would like to have the built-in indicators in eSignal trigger an audible alert when certain conditions are met. For example, when MACD makes a crossover, is there a simple way to generate an audible alert for this condition?

Thanks in advance,
Jay Anderson

[DuaneG]

janderson,

There are a few examples of these types of studies in the Alerts folder. Below is an example of the AlertMA.efs. This study generates two types of audible alerts when a certain condition is met. Hope this gets you started.

/****************************************************************************************************
Copyright © eSignal, a division of Interactive Data Corporation. 2002. All rights reserved. 
This sample eSignal Formula Script (EFS) may be modified and saved under a new 
filename; however, eSignal is no longer responsible for the functionality once modified.
eSignal reserves the right to modify and overwrite this EFS file with each new release.
*****************************************************************************************************/
var study = new MAStudy(10, 0, "Close", MAStudy.SIMPLE);

function preMain() {
    setPriceStudy(true);
}

var bIsLong = false;
var bIsShort = false;

function main() {
    var v = study.getValue(MAStudy.MA);

    if(v == null)
        return;


    if(close() >= v) {
        if(!bIsLong) {
            Alert.addToList(getSymbol(), "Price is >= 10 Bar MA", Color.black, Color.green);
            Alert.playSound("swoosh.wav");
            bIsLong = true;
            bIsShort = false;
        }
    } else {
        if(!bIsShort) {
            Alert.addToList(getSymbol(), "Price is < 10 Bar MA", Color.white, Color.red);
            Alert.playSound("train.wav");
            bIsLong = false;
            bIsShort = true;
        }
    }

    return v;
}