Hi everyone,

Is there any command to identify the pattern of responses of a database with this format:

year  id
2008    1
2009    1
2008    2
2009    2
2008    3
2009    3
2008    4
2009    4
2010    4


I just need the frequency of the patterns grouped by id:

2008 2009 2010 = 80
        2009 2010 = 30
2008 2009         = 10
and so on....

Thank you in advance!

--
Sebastián Daza
sebastian.d...@gmail.com

______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Reply via email to