Derived price - FXB.ta.DerivedPrice

The FXB.ta.DerivedPrice simply returns a derived price such as "median" or "typical" from an array of candles. It is therefore a bar-based calculation, and it has no parameters apart from the derived member to return. For example, calculating a list of median prices from a candle array:

var medians = new FXB.ta.DerivedPrice({member: "median", data: [{o: 1.2456, …}, { … }]);