变数的变换 变数的变换有种种用途。这里仅就方差分析的需要来讨论变数的变换。 有时用某种尺度量计的实验数据不适于进行方差分析,因为方差显著不等。这种数据的量计尺度经过适当的变换后,可能进行方差分析。至于换什么尺度最为适当,我们有时知道,有时不知道。改变变数的量计尺度的手续叫做“变数的变换”。 Transforms of Variables There are various uses for the transformation of variables. Here we discuss the transformation of variables only for the needs of analysis of variance. Sometimes experimental data with a certain scale are not suitable for analysis of variance because the variance is significantly different. After the scale of this data is properly transformed, analysis of variance may be performed. As for the most appropriate measure of change, we sometimes know that sometimes we do not know. The procedure for changing the scale of a variable is called “variable transformation.”