...still a bit new to stata - using xtreg for a two wave design.
Here is the basic command
xtreg x y z [pweight=weight] if male==0, pa i(ID)
1) why does stata keep telling me that the weights are not constant within
ID when they are? Does this have anything to do with the weights going to
4 decimal places? Does stata normalize the weights by default?
2) I've used the "beta" option for other commands to provide standardized
coefficients, but I can't get it to work in xtreg. Any ideas?
