Displaying 1 result from an estimated 1 matches for "lag_bi".
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lag_by
2007 Dec 13
1
creating lagged variables
Hi all.
I'm looking for robust ways of building lagged variables in a dataset
with multiple individuals.
Consider a dataset with variables like the following:
##
set.seed(123)
d <- data.frame(id = rep(1:2, each=3), time=rep(1:3, 2), value=rnorm(6))
##
>d
id time value
1 1 1 -0.56047565
2 1 2 -0.23017749
3 1 3 1.55870831
4 2 1 0.07050839
5 2 2 0.12928774
6