Description Usage Arguments Value Author(s)
Lags (or leads) a variable in a time-series corss-sectional dataset.
1 |
dat |
A data frame. |
x |
A string identifying variable to be lagged. |
id |
A string identifying the name of the cross-sectional identifier. |
time |
A string identifying the name of the time variable. |
lagLength |
The length of the lag, use negative values for leading variables. |
A vector giving the lagged values of x
.
Dave Armstrong
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