How to append extra values

[Chan Joo Jang <cjjang@xxxxxxxxxxx>]

Dear Ferret users:

How do I append extra values to a given netcdf file?

For example,

yes? use po4.nc
yes? sho data
currently SET data sets:
1> ./po4.nc (default)
name title I J K L
PO4 po4(mmol/m^3) 1:180 1:90 1:6 1:12

yes? let p80=po4[k=6]+(po4[k=6]-po4[k=5])/3

Then, I would like to append p80 to po4 at 7th depth using Ferret.

Thanks in advance.
Jang

-- 
Chan Joo Jang, Ph.D., Senior researcher 
(cjjang@kordi.re.kr,http://ogcm.kordi.re.kr)
Korea Ocean Research and Development Institute
1270 Sa1-dong, Ansan  425-744, Korea
Phone 82-31-400-6317 FAX 82-31-408-5823