趋势修匀的多项式插值曲线

<title>Polynomial Interpolation Curve of Trend Correction

利用移动平均法将给定的型值点修匀,然后再进行多项式插值.得到的曲线减少了偶然因素对曲线的影响,保证了曲线的光滑性。

<Abstrcat>With the application of moving average method, the given offset point is corrected and then, the polynomial is interpolated. The result obtained decreases the influence produced by accidental elements, which guarantees the smoothness of the curve, and has great use in trend analysis.