[R] removing observations

Justin G. Gardner jggardne at uiuc.edu
Fri Aug 13 16:25:52 CEST 2004

Hello R list.

I am sure this is an easy question, please forgive my 
ignorance of R.

I have a panel data set (25 years) and I would like to break 
it up by year, and run a few tests.  How is this done in R?  
In STATA it is quite simple (keep if year =1970).  If someone 
could give me an example of how to do it for a single year I 
am sure I could make a little loop to do it for all 25.


More information about the R-help mailing list