xtset: prepares a panel dataset for lag operations
In genvar: An Imperative Library for Data Manipulation

Description Usage Arguments Value Examples

prepares a panel dataset for lag operations. The lag function in R is simply "lag(var,numlags)". After calling xtset, this lag function will work on the panel in the way you would expect.

1	xtset(timevar, obsvar)

`timevar`	the name of the variable to for the time dimension
`obsvar`	the name of the variable to use for the observation dimension

returns NULL, invisibly

library(plm)
data(Produc)
use(Produc, clear=TRUE)
xtset(year, state)
gen(Lemp, L(emp))
listif(vars="emp Lemp")
reg(emp, unemp, effect="twoway")
reg(emp, unemp, effect="individual")
reg(emp, unemp, effect="time")