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An Analysis of Curve Fitting Functions for vehick Speed Distribution Based on Histogram Improving Method
Author(s): 
Pages: 89-95
Year: Issue:  1
Journal: Acta Scientiarum Naturalium Universitatis Neimongol

Keyword:  速度分布直方图相关系数拟合函数;
Abstract: 通过对国内外已有的研究分析,发现车速的分布规律变化不一,很难用单一的某一种分布模型进行拟合.因此,通过对呼和浩特市昭乌达路的速度数据采集,利用直方图优选的方法对速度分布直方图进行改进,并利用正态分布、威布尔分布、伽玛分布和Logistic分布模型对改进后的直方图进行了拟合分析.通过对拟合分析得出的相关系数的比较,给出了这四种分布在拟合速度分布时的适用范围.
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