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目的 解决环境医学研究中某些特定试验条件下正交试验的统计问题。方法 用正交表L8(2 7)安排三因素两水平的磁场、噪声及温度的复合效应试验 ,并用 Visual Basic语言编制应用程序完成数据输入、均数计算及方差分析等功能。结果 程序界面设计良好、人机交互性强、计算结果准确、数据显示直观 ,操作方便 ,大大提高计算效率。结论 对具体问题的计算表明 ,该应用程序是可行的、有效的 ,较好地解决实际问题
Objective To solve the statistical problems of orthogonal test in some special experimental conditions in environmental medical research. Methods A quadrature table L8 (27) was used to test the composite effect of magnetic field, noise and temperature with three factors and two levels. The application programs were completed with Visual Basic language to complete the functions of data input, mean calculation and analysis of variance. Results The program interface is well designed, human-computer interaction is strong, the calculation results are accurate, the data is intuitive, the operation is convenient and the calculation efficiency is greatly raised. Conclusion The calculation of specific problems shows that the application is feasible, effective and well solved practical problems