通过调整R平方或不重要变量的数量，哪个模型更好

This question was migrated from Stack Overflow because it can be answered on Cross Validated. Migrated 2 days ago. 哪种模式更好？为什么？我用Pr值，比较不重要变量的数量和调整后的R平方。根据我的理解，不重要变量的数...