NChartDataSmootherLagrange Class Reference

Inherits from NChartDataSmoother : NSObject
Declared in NChartDataSmootherLagrange.h


The NChartDataSmootherLagrange class provides data smoother based on Lagrange polynoms used to create smooth lines on the charts by only a few points. Typically this smoother is used for line and area series.

This smoother ensures the best smoothing in comparison with NChartDataSmootherTBezier and NChartDataSmootherSBezier, but has large deviation from the linear data interpolation (even larger than ) and can produce large fake extremums. It may be good for some, but generally it’s recommended to use NChartDataSmootherTBezier instead.