Model: Are high VIF an issue in all cases?
Here's the situation: I am trying to build a model to express a particular Y using 25 parameters in X. All the data from my parameters X is given by the same single technology, which is analyzing 1 sample using 25 frequencies (my X), as a frequency scanning to gain maximum information. In other word, for each single Y data, I will have 25 X.
But the issue is that when I build models, I obtain huge ...