The NCDF_INQUIRE function returns a structure that contains information about an open NetCDF file. This structure of the form:
            { NDIMS:0L, NVARS:0L, NGATTS:0L, RECDIM:0L }
            The structure tags are described below.
            Examples
            See NCDF_VARDEF.
            Syntax
            Result = NCDF_INQUIRE(Cdfid)
            Return Value 
            The returned structure contains the following tags:
            
                
                                 
                    
                        | Tag | Description  | 
                                  
                    
                        | Ndims | The number of dimensions defined for this NetCDF file. | 
                    
                        | Nvars | The number of variables defined for this NetCDF file. | 
                    
                        | Ngatts | The number of global attributes defined for this NetCDF file. | 
                    
                        | RecDim | The ID of the unlimited dimension, if there is one, for this NetCDF file. If there is no unlimited dimension, RecDim is set to -1. | 
                 
            
            Arguments
            Cdfid
            The NetCDF ID, returned from a previous call to NCDF_OPEN, NCDF_CREATE, or NCDF_GROUPDEF.
            Keywords
            None 
            Version History