. . clear

. import excel "C:\Users\11738\Desktop\WGI.xls", sheet("6个") firstrow

. global xlist" x1 x2 x3 x4 x5 x6 "

. do "C:\Users\11738\AppData\Local\Temp\STD2170_000000.tmp"

. foreach x of global xlist{
  2. egen std `x' =std(`x')
  3. }
variable x1 already defined
r(110);

end of do-file

r(110);