lagPanel: Generate lagged input variables
Description
Function to generate lagged variables in a panel.
Usage
lagPanel(idvar, timevar, value)
Arguments
idvar
vector of panel identifiers.
timevar
vector of time identifiers.
value
variable vector to be lagged.
Details
lagPanel() accepts three inputs (the ID, the time and the variable to be lagged) and returns the vector of lagged variable. Lagged inputs with no correspondence - i.e., X_-1 - are returned as NA.