Number of entries for attribute with variable scope
nentries = cdflib.getNumAttrEntries(cdfId,attrNum)
nentries = cdflib.getNumAttrEntries(cdfId,attrNum)
returns the number of entries for the specified attribute in the Common
Data Format (CDF) file.
cdfId identifies the CDF file.
attrNum is a numeric value that specifies
the attribute. Attribute numbers are zero-based. The attribute must
have variable scope.
Open the example CDF, find an attribute with variable scope, and determine how many entries are associated with the attribute:
cdfid = cdflib.open('example.cdf');
% Get the number of an attribute
% with variable scope
attrNum = cdflib.getAttrNum(cdfid,'Description');
% Check that scope of attribute is variable
attrScope = cdflib.getAttrScope(cdfid,attrNum)
VARIABLE_SCOPE
% Determine the number of entries for the attribute
attrEntries = cdflib.getNumAttrEntries(cdfid,attrNum)
attrEntries =
4
% Clean up
cdflib.close(cdfid);
This function corresponds to the CDF library C API routine CDFgetNumAttrzEntries.
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.