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Displaying TFA Mean Instantaneous Frequency.vi output as a Graph

I am trying to make a vi that gives frequency vs time graph and data table for an input signal.  I am not using any external hardware. The signal is read in from a spreadsheet.  I based my work on the LabVIEW 2018 example Blood Flow Measurement.vi.  In the example, creating an indicator on the output of the TFA Mean Instantaneous Frequency.vi puts a frequency vs time graph on the front panel.  In my program, when I create an indicator at the same output, I get a cluster.  I have tried adding an XY graph but the source and sink formats do not match.  My vi runs, so there is no error message or troubleshooting to report - I just can't find any documentation that helps.

 

Can anyone tell me why the vi behaves differently in my vi and the example vi?  And how I can get a graph of the output? 

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