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Number of entries for attribute with global scope


nentries = cdflib.getNumAttrgEntries(cdfId,attrNum)


nentries = cdflib.getNumAttrgEntries(cdfId,attrNum) returns the number of entries written for the specified global attribute in the Common Data Format (CDF) file.

cdfId identifies the CDF file. attrNum is a numeric value that identifies the attribute. Attribute numbers are zero-based. The attribute must have global scope.


Open the example CDF and find out how many entries are associated with a global attribute in the file.

cdfid ='example.cdf');

% The first attribute is a global attribute.
attrgEntries = cdflib.getNumAttrgEntries(cdfid,0)

attrgEntries =


% Clean up

clear cdfid

Related Examples


This function corresponds to the CDF library C API routine CDFgetNumAttrgEntries.

To use this function, you must be familiar with the CDF C interface. Read the CDF documentation at the CDF website.

For copyright information, see the cdfcopyright.txt file.

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