差异(会计)
转化(遗传学)
残余物
统计
单因素方差分析
比例(比率)
常量(计算机编程)
方差分析
数学
计量经济学
计算机科学
算法
地图学
地理
业务
会计
基因
化学
程序设计语言
生物化学
出处
期刊:PubMed
日期:1947-03-01
卷期号:3 (1): 39-52
被引量:395
摘要
1. Theoretical Discussion. The purpose of this note is to summarize the transformations which have been used on raw statistical data, with particular reference to analysis of variance. For any such analysis the usual purpose of the transformation is to change the scale of the measurements in order to make the analysis more valid. Thus the conditions required for assessing accuracy in the ordinary unweighted analysis of variance include the important one of a constant residual or error variance, and if the variance tends to change with the mean level of the measurements, the variance will only be stabilized by a suitable change of scale. If the form of the change of variance with mean level is known, this determines the type of transformation to use. Suppose we write
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