cdflib.inquire

Information about Common Data Format (CDF) file

Syntax

info = cdflib.inquire(cdfId)

info = cdflib.inquire(cdfId) returns basic information about a Common Data Format (CDF) file.

cdfId

Identifier of a CDF file, returned by a call to cdflib.create or cdflib.open.

info

A structure containing the following fields:

Field	Description
`encoding`	Encoding of the variable data and attribute entry data
`majority`	Majority of the variable data
`maxRec`	Maximum record number written to a CDF variable
`numVars`	Number of CDF variables
`numvAttrs`	Number of attributes with variable scope
`numgAttrs`	Number of attributes with global scope

Open the example CDF file, and then get basic information about the file:

cdfId = cdflib.open("example.cdf");

info = cdflib.inquire(cdfId)

info = 

     encoding: 'IBMPC_ENCODING'
     majority: 'ROW_MAJOR'
       maxRec: 23
      numVars: 5
    numvAttrs: 1
    numgAttrs: 3

% Clean up
cdflib.close(cdfId)
clear cdfId

This function corresponds to the CDF library C API routines CDFinquireCDF and CDFgetNumgAttributes.
To use this function, you must be familiar with the CDF C interface. You can access the CDF documentation at the CDF website.