[R] levels

De Amicis Fabrizio (G.I.T.) Fabrizio.DeAmicis at git.generali.ch
Wed May 7 16:33:29 CEST 2003


Thanks to all for the previus answer. I want to be more detailed:

I have a dataset called gm20011231 with 1304 observations (or records). 

I want to create a subset with the followin command


the levels of "V4"  is 1304 and the and the length(j2) is 10. 

Do you know how to obtain a j2 with level 10?

Thank you

Fabrizio De Amicis

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