If we use ¯¯¯R2 to compare regression models, it is important that the dependent variable be defined the same way in both models and that the sample sizes used to estimate the models are the same
(Institute 336)
Institute, CFA. 2018 CFA Program Level II Volume 1 Ethical and Professional Standards, Quantitative Methods, and Economics. CFA Institute, 07/2017. VitalBook file.
所提供的引文是一个指南。请在使用之前查看每个引文以确保准确性。
这是教材关于adjust R原文，课程好像没有讲到，可否解释下
the dependent variable be defined the same way in both models and that the sample sizes used to estimate the models are the same
究竟是什么意思？为什么要有这两个条件才能用adjust R方比较回归模型？
