... single, double. - Regressions: Polynomial (Constant, Linear, Quadratic, Cubic, 4th, 5th), Exponential, Modified Exponential, Power, Gompertz, Logistic. ... - Seasonal smoothing: Triple Holt-Winters exponential smoothing. - Curves:B-Spline, Chaikin, Catmull-Rom, Ferguson. Other features: - Graphical interface. - Import from text files, Excel (*.xls), Excel 2010 (.xlsx). - or dialog for direct data ...
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