The result also reveals that B-spline model performs better than other models integralively in precision of fitting prices, curve smoothness and stability.
样条法在利率期限结构的拟合精度、曲线光滑性及平稳性方面的综合效果最好。
Adopting this method, we can not only improve the smoothness of filtering curve but also approximately preserve the shape of original function.
应用这种方法不仅可以改善滤波特性曲线的光滑度，还可近似地保持原函数的形状。
The result obtained decreases the influence produced by accidental elements, which guarantees the smoothness of the curve, and has great use in trend analysis.
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，在趋势分析中用途较大。
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