通过对近年全国铁路货运量的统计数据进行分析，运用灰色理论建立了铁路货运量预测模型。
After analyzing the data on railway freight volume of recent years, the authors establish the railway freight volume forecasting model by use of grey theory.
介绍了多元统计分析中主成分分析法在公路主枢纽货运站场布局评价中的应用。
In this paper, the method of principal component analysis in multidimensional statistic analysis is applied in comprehensive evaluation of stations arrangement in Highway Transport Hub.
方法 收集 990～ 0 0 0年全路客、货运输重大、大事故记录资料 ，应用圆形分布等统计分析方法。
Methods To collect the record of fateful and great railway injuries in China from 990 to 000, and analyze the data by circular distribution and chi square test.
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