[gradsusr] Correlation

[Jian-Jian Wang]

'reinit'
'open npp_swath_test.ctl'
'open /user/parkin/validation/STAR/SWATH/NMQ/nmq_test.ctl'
'd scorr(nmq.2, atm.1, lon=-125, lon=-65, lat=20, lat=50)'

When I run the script in Grads, it won't give me any number.
But if I do it line by line like:

open npp_swath_test.ctl
open /user/parkin/validation/STAR/SWATH/NMQ/nmq_test.ctl
d scorr(nmq.2, atm.1, lon=-125, lon=-65, lat=20, lat=50)

it shows: 
Result value = 0.426107

why didn't it show the Result value when running the script?
Thank you in advance.

Jay