The CDF_ATTNUM function returns the attribute number associated with a particular attribute in a Common Data Format file.
Result = CDF_ATTNUM(Id, Attribute_Name)
Returns the attribute number.
The CDF ID for the file that contains the desired attribute, returned from a previous call to CDF_OPEN or CDF_CREATE.
A string containing the name of the attribute.
See the example for CDF_ATTPUT.
Introduced: Pre 4.0