NinjaScript > Language Reference > Indicator Methods >
The Volume Oscillator uses the difference between two moving averages of volume to determine if the trend is increasing or decreasing. A value above zero indicates that the shorter term volume moving average has risen above the longer term volume moving average. This indicates that the shorter term trend is higher than the longer term trend. Rising prices with with increased short term volume is bullish as is falling prices with decreased volume. Falling prices with increased volume or rising prices with decreased volume indicate market weakness.
double; Accessing this method via an index value [int barsAgo] returns the indicator value of the referenced bar.
You can view this indicator method source code by selecting the menu Tools > Edit NinjaScript > Indicator within the NinjaTrader Control Center window.