by id, sort:egen m = count (year)

. foreach x of global xlist{
  2. gen w`x' = w1`x' + 0.0000000001   
> egen e1`x' = total(w`x' * log(w`x'))
  3. gen d`x' = 1 + 1/log(m) * e1`x'   
> }invalid 'egen'
r(198);





请问大家是哪里出了问题呢