Hello, I'm a student, doing my final year project with my team, and we are encountering some problems. Right now, we are trying to find the extinction ratio. From the screenshots below, you can see my block diagram and front panel. We need to find out the maximum point and the minumum point, to find out the extinction ratio. My team, we have tried using the 'Statistics' VI, found in LabVIEW itself, but however, it only gives us the value of the last reading, which is not what we want. Perhaps, our connection is wrong. We don't quite understand where the 'Signals' connection should be connected to. We tried to connect the 'Signal' to the 'XY Graph', but there would be error if I do so. So, my question, is simply, how can I get the maximum AND minimum value from the XY Graph? The following screenshots are from my team's project, and for your reference. We really need help. Front Panel: Block Diagram:

LabVIEW

Good to hear that, PotatoMan. Best of luck in your project. Thanks for supporting NI.

Best Regards,
Gerrald Mateo
Applications Engineer
National Instruments

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