Hi All, is it possible in R groping of data ?Please check blow example.
student_id Fee 5555 1200 5555 1200 1111 1200 6666 1500 6666 1500 6666 1000 7777 1000 8888 1000 8888 1000 8888 1000 8888 1000 output of will be student_id count 5555 2 1111 1 6666 3 7777 1 8888 4 -- Sent from: http://r.789695.n4.nabble.com/datatable-help-f2315188.html _______________________________________________ datatable-help mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
