IGBollingerBandOverlay Class Reference
IGBollingerBandOverlay measures variation of price over time. Bollinger band consists of a moving average and two standard deviation volatility bands, placed above and below the moving average.
A value that determines the multiplier for the series. The default value is 2.
@property (nonatomic) double multiplier
A value that determines the period for the Bollinger series. The default value is 14.
@property (nonatomic) NSInteger period