When name and year exist, I cannot use the command below because it says variables already exist. how to insert some observations quickly?
Code:
input expName year
刘洋   2015
彭蓉   2015
方静   2016
杜海燕   2015
石书田   2015
邵宗义   2015
金源祎   2016
陈伯爽   2015
end
​​​​​​​I know a stupid way is
set obs ...
replace ...in...

But when I have a lot of observations to add, I guess there should be a better and more direct way.
Thanks!