I understand that the Programmatic (command-line) way to select a signal output of a WaveFormGenerator is being asked for.
It is possible to select signals before the simulation starts and after a simulation has ended but not during the time when simulation is running.
By using the 'get_param' one can change and select signals as required. Following is a code snippet on how to do so:
>> WaveFormBlk = gcb %path to the WaveformGenerator block in model (Can select the block and use gcb or give the ExactPath to the block as a string)
>> get_param(WaveFormBlk,'selectedSignal')
% returns the present selected signal
>> set_param(WaveFormBlk,'selectedSignal','4')
% Change the selection to 4, Third argument has to be a string containing a number representing which signal to select
Hope this helps!
