plz help. how to filter/group/sort data on mass data
type
??lag
at the R command line.
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bestbird <bestbird7788 at gmail.com> wrote:
I have know how to sort and filter and group. can anyone answer my another question? Is there any function in R like *lead *and *lag * in SQL. They are relative position function. We can use them to solve problem such as : on year-on-year basis, link relative ratio can anyone give a tips? -- View this message in context: http://r.789695.n4.nabble.com/plz-help-how-to-filter-group-sort-data-on-mass-data-tp4630714p4631653.html Sent from the R help mailing list archive at Nabble.com.
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