沉了，顶一下

采用因子分析法把两个变量合并？？？

贴点数据出来看看

学习中

Don't know the details of your model.
Generally speaking, multicolliniarity has important effects on your model if your sample size is small but its effects are small if your sample size is large. Check the error items of your independent variables in your model, if not big, you may be Ok.