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- Thu Jan 16, 2014 5:53 am
- Forum: Estimation
- Topic: Dummy Variables
- Replies: 144
- Views: 383406
Re: Dummy Variables
hi i have a question regarding to use year dummy variables in fixed effect model when i add my dummy variable and i want to run a model it says singular matrix but without it i can use fixed effect one more question is about using distance variable,you know that distance is not changing by time so i...