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makegroup
2012 May 08
1
grouping function
Hello, I would like to write a function that makes a grouping variable for
some panel data . The grouping variable is made conditional on the begin
year and the end year. Here is the code I have written so far.
name <- c(rep('Frank',5), rep('Tony',5), rep('Edward',5));
begin <- c(seq(1990,1994), seq(1991,1995), seq(1992,1996));
end <- c(seq(1995,1999),