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cal_dat
2011 Apr 07
2
Regrouping data
Dear R forum
I have just started my venture with R. While I am trying to learn R through the tutorials, I think the current problem I need to address to is beyond my knowledge about R.
I have a dataframe as defined below -
rat_dat = data.frame(name = c("A", "A", "A", "B", "B", "B", "C", "C", "C", "D", "D", "D"),
period = c("31-Mar-11", "30-Mar-11", "29-...