Hi Sam, Actually Ferret can read and use datasets where NaN should be treated as the fill or missing value but doesn't let you assign NaN as a missing-data value or for that matter to the value of any variable. I think you'll have to do this outside of Ferret. Perhaps somebody can tell us whether the NCO operators will let you do this. By the way, the MISSING function goes back to the earliest versions of Ferret. Don't you see it listed if you ask for yes? show function missing Ansley On 6/20/2011 12:39 PM, Sam Rabin wrote: Hello! I am trying to analyze a NetCDF file in MatLab, and I would like to change all "missing" values in the dataset to NaN for compatibility. This would probably be trivial if the missing() function were an option, but I am running Ferret v6.401 and that command is not present. |