[gradsusr] Loop help

[Emily Wilson]

Hello! I need help formatting a loop command in a GrADS script.  I am using
GrADS to extract PDSI data from a NetCDF file.  My script so far looks like
this....

 'reinit'
*
 'sdfopen pdsi.mon.mean.selfcalibrated.nc'
*
 'enable print grads.outfile'
  say '** OUTPUT FILE: grads.outfile'
 'clear'
 'set grads off'
 'set mpdset lores'
 'set lon -106 -106'
 'set lat 40 40'
*
*
  'define y1=pdsi.1(t=673)'


Now I want to define y1 thru y1260 with corresponding t= values starting at
673 and ending with 1936.  Instead of typing all of this out, I know I can
use a loop but I do not no how to format that code.  Could someone please
help me format this loop.
Thanks in advance,
*Emily P. Wilson, Intern*
Research and Conservation Department
Denver Botanic Gardens
1007 York St.
Denver, CO 80206
720-865-3593
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