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本文对Weibull分布模型理论及其拟合的方法进行了介绍。并用实例计算了阳新县女生月经半数初潮年龄为13.93岁,95％的正常值范围为11.21～16.39岁,经与其他研究方法比较,显示出Weibull分布法有应用范围广,对不同偏态程度资料适应性强,计算的结果较为精确客观,提供的信息量丰富等优点。对拟合Weibull分布的两种方法——直接计算法和概率纸法进行了讨论,认为以前者为优。提示对发育资料及其他一些偏态资料可用Weibull分布法来研究。
In this paper, Weibull distribution model theory and its fitting method are introduced. And an example was used to calculate the half-menarche age of males in Yangxin County was 13.93 years old. The normal range of 95% was 11.21-16.39 years old. Compared with other research methods, Weibull distribution method showed a wide range of applications. Adaptability, the calculation results are more accurate and objective, providing a wealth of information and other advantages. Two methods for fitting Weibull distribution, direct calculation method and probabilistic paper method, are discussed, and the former is considered as excellent. Tips for developmental data and other skewed data can be Weibull distribution method to study.