panel2cs takes a 2 period dataset and turns it into a cross sectional dataset. The data includes the change in time varying variables between the time periods. The default functionality is to keep all the variables from period 1 and add all the variables listed by name in timevars from period 2 to those.
panel2cs(data, timevars, idname, tname)
data.frame
data.frame used in function
vector of names of variables to keep
unique id
time period name