[ferret_users] number of opened datasets

[David Wang <dwang@xxxxxxxxxxxxxxxxx>]

Hi Ferreters,

I wonder if there is any system symbol (or means) keeping track of the 
number of opened datasets in the current session. I'd like loop around 
all datasets with the command:

repeat/name=m/range=1:`number_of_datasets` let/data=`m` v2 = v1[t=@ave]

without manually counting and specifying the number of datasets.

Thanks,
David

--
Daiwei Wang
Department of Earth and Environmental Sciences and
Lamont-Doherty Earth Observatory
Columbia University