Alert.addToList

[z11]

Hi Jason/Alex:

does that command only avails itself on the last bar? i.e., barindex = 0?

Is there anyway to post messages on Alertlist during processing historical bars?

Thanks.

[eSignal_JasonK]

Hello z11,

You are correct. The Alert object's alerts will only be executed in real time, not on historical bars during the loading process. There isn't a method for populating the Alert list during the loading process. You could print the information to a file or to the formula output window as an alternative.

[z11]

thanks for the confirmation...after many attempts I ended up with debugPrintln as the closest (visual) alternative but just wanted to make sure...

[wildfiction]

Thanks for confirming that behavior Jason.

I think that it would be useful to have that sort of information in the help file as well. For each function it would be a great help to be able to see:

Available in:
main() (only while receiving ticks on current bar)

Not available in:
preMain()
postMain()

etc.

It would save a lot of time and remove the need to come to the Bulletin Board and search for the info. It would also save time trying to use the function in a context that it was not meant to be used (for the programmer) as well as answer questions such as these (for you).

Thanks.

[wildfiction]

Originally posted by z11
thanks for the confirmation...after many attempts I ended up with debugPrintln as the closest (visual) alternative but just wanted to make sure...

z11: If the symbol that you want initial alerts on is updated frequently enough then the following work around might help you:

Call
AppendAlert("some alert text");
with your alert.

And then call
ShowPendingAlerts();
on each tick.

This can also be modified by using the time functions to show alerts only at specific times and to queue them until then.

var _bPendingAlerts = false;
var _sPendingAlerts = new Array();
function ShowPendingAlerts() {
    if(_bPendingAlerts) {
        var i;
        for(i=0; i<_sPendingAlerts.length; i++) {
            Alert.addToList(getSymbol(), _sPendingAlerts[i], Color.white, Color.red);
        }
        _sPendingAlerts = new Array();
        _bPendingAlerts = false;
    }
}

function AppendAlert(alertString) {
    debugPrintln(alertString);
    _sPendingAlerts.push(alertString);
    _bPendingAlerts = true;
} 

[z11]

Hi Alex/Jason:

in EFS1, I am trying to get atr of a symbol with a "D" interval from a chart running at 15 minute interval (or any other interval for that matter):
var a1 = atr(14, getSymbol(), "D");

I am not getting the right value from that call to atr? Please help.

As always, thank you very much.

[z11]

ok Gentlemen, I did not articulate my question correctly:

in EFS1, is there a way to retrieve ATR of daily frequency within a script running in a 15 minute chart?

I tried:

var atr1 = new ATRStudy(14, getSymbol()+", D");
var atr1v = atr1.getValue(ATRStudy.ATR);

...and atr1v returns atr(14) of the 15 minute time frame, instead of "D". Any thoughts?

ziggy

[ACM]

ziggy
You cannot use external symbols (and/or intervals) with efs1 builtin studies
Alex