一般来说 ,统计方法的选择要考虑分析的目的、资料类型、实验设计类型、研究因素与水平数、数据分布特征和样本量大小等 ,同时还要根据专业知识与资料的实际情况 ,结合统计学原则 ,灵活地选择统计分析方法。医学测量结果按其性质分为计量资料 ,计数资料和等级资料三类。1 计量 In general, the choice of statistical methods to consider the purpose of analysis, type of data, the type of experimental design, the number of research factors and levels, the distribution of data and sample size, etc., but also according to the actual situation of professional knowledge and information, combined with statistics Learn the principle of flexible choice of statistical analysis. Medical measurement results according to their nature is divided into measurement data, count data and level data three categories. 1 measurement