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?