new MAStudy(); previous bar value

[Guest]

Hi, I have a study that is looking for the 60 minute VWAP to be curving up or down.

var xMA3 = new MAStudy(60, 0, "Close", MAStudy.VOLUMEWEIGHTED);

var nVWAP3_1 = xMA3.getValue(-1);

this is returning null?

Am i trying to do something that should be done using another method? In my function return I am not sending out nVWAP3_1 as I dont want to plot I just want to access this inside the main() function.

Any ideas on why this is returning null into the EFS output window when I debug out to window?

[ACM]

markswall
The method used to retrieve the value is incorrect and should be xMA3.getValue(MAStudy.MA,-1);
See this article in the EFS KnowledgeBase for the complete syntax required by the function.
Alex