writing double loop to ascii file

[Michael Sigmond]

Dear Grads users,

I'm trying to write 21 timeseries to an ascii file with the script below.
Grads doesn't understand my double while construction. Does anybody know a
solution?
Thanks in advance,

Michael Sigmond


file='g05c.txt'
area=1
t=1

while(area<=21)
  while(t<=60)
   'set t 't
   'd g05c'area
   yy=subwrd(result,4)
   good=write(file,yy,append)
   t=t+1
  endwhile
  area=area+1
endwhile