What is IndicatorBase.Weighted?

[rwbta]

I am trying to understand some NinjaScript code the uses WMA like this:
wmaSeries.Set(WMA(Weighted, 2)[0]);

It apparently is used here as a dataseries, but where does it come from? Exactly what is Weighted? Is not a declared variable anywhere in the code. When I hover over it, the following is displayed:
IDataSeries IndicatorBase.Weighted

I can't find any info on this by searching the internet, the forums here or the Help Guide. Is this some sort of pre-calculated constant? Where can I find an explanation of what this represents?

[NinjaTrader_PatrickH]

Hello rwbta,

Thank you for your note.

You can information on Weighted at the following link: http://www.ninjatrader.com/support/h...7/weighted.htm

[rwbta]

Thank you. I wonder why it didn't come up in my searches earlier today? Oh well, at least I've got it now.