Hello all, Was just curious about why I have a coercion dot on my FFT Power Spectrum when suppling it a waveform? I thought (and the detailed help agrees with me) that a waveform was the required type of input. Maybe there is more going on here than I realize but clearly I don't see it. As a sidenote I'm going this because I'm replacing an express VI in an application I was handed to finish up and the express power spectrum VI seems to give results that are off by the square of the input function. Ok so that sentence makes little sense, so what I mean is when I hook a function generator up to my DAQ board and supply a sine wave of a known frequency the express power spectrum VI gives 16Hz instead of 4Hz, or 2500 instead of 50. The normal power spectrum VI works fine. Don't like Express VI's anyways but just curious. Thanks in advance!

Is the Y array DBL? SGL or EXT would produce a coercion dot. Lynn

LabVIEW

Solved!

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If I could also mark Jim's last post as a solution I would...but had to pick one and Lynn's came in first.

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You can give Jim Kudos. That is a nice way to thank someone who has helped you.

Lynn

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