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How to use the N5242 IVI driver function in MATLAB instrument control box

Question asked by michael2018 on Aug 25, 2014
Latest reply on Sep 10, 2014 by ningchen
I connected Agilent N5242A network analyzer to my computer through USB cable.  I am able to communicate to N5242A from computer through MATLAB instrument control tool box by using  Agilent IVI driver ( AqNA ). Inside the IVI driver, there are many functions which can be used to control the N5242A, but I don't know the parameters which have to input the function call.
for example: 
function [pReceiverPortVal, pSourcePortVal] = channelmeasurementgetsparameter(obj, RepCapIdentifier)
what is the obj, and RepCapldentifier.

function channelsegmentaddcenterspan(obj, RepCapIdentifier, CenterVal, SpanVal, NumberOfPointVal, IFBandwidthVal, PowerVal, TimeVal)

what are " obj, RepCapIdentifier, CenterVal, SpanVal, NumberOfPointVal, IFBandwidthVal, PowerVal, TimeVal " what value they should be? 

There are many function included in the  AqNA, IVI drivers. 
where I can find the information about which parameter should go into this  each function, which kind data will come out this function call and what functionality of each function?  What document?  

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