Dear Constanze,
the error message gives you a hint, where the problem might be. The
first error massage says that you have NAs in your index variables
Unit and Week. You can check that with the is.na() function. The
second error message (r.squared) tells you to specify the model, that is
on
DearGiovanni,Congratulationsfor the truly helpful plm package! Being new to R,
I have a problem with the plm function for financial markets timeseries data:
After having defined a large, unbalanced panel pdata.frame
(https://www.dropbox.com/s/2r9t1cu9v65gobk/Database_CN_2004.csv?dl=0)and
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