[ferret_users] Missing value flag.

[nikesh@xxxxxxxxxxxxxxxxxxxx]

Hi ferreters,

 I want to change the missing value flag in a netcdf file from the default value
to NaN, which is compatable with matlab.

I have tried the

 set var/bad=NaN but it only changes the missing value for the current ferret
session, if I am writing a new netcdf file even after the set var/bad=NaN
command, in new netcdf file also the default value is given. Should I do
something else for attaining that.

Thanks in advance.