Volume Indicator Functions
AD - Chaikin A/D Line
real = AD(high, low, close, volume)
ADOSC - Chaikin A/D Oscillator
real = ADOSC(high, low, close, volume, fastperiod=3, slowperiod=10)
OBV - On Balance Volume
real = OBV(close, volume)
real = AD(high, low, close, volume)
real = ADOSC(high, low, close, volume, fastperiod=3, slowperiod=10)
real = OBV(close, volume)