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Math Help - Spectral Plot: A question on identified frequency

  1. #1
    Junior Member
    Joined
    Nov 2007
    Posts
    48

    What is a Spectral Plot?

    Greetings,

    I elaborate on my question using an example.

    What does it mean that this dataset has a dominant frequency of 0.3, as indicated by it's spectral plot in this diagram? In other words, I suppose what I am asking is, what in the given dataset is occurring at the identified frequency?

    Look forward to a prompt response.

    Best regards,
    wirefree
    Last edited by wirefree; October 14th 2010 at 10:51 AM.
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  2. #2
    Junior Member
    Joined
    Nov 2007
    Posts
    48

    What is a Spectral Plot?

    Greetings,

    Further to my query above, for which I continue to seek a response, I have obtained the following definition of Spectral Plot:

    The spectral plot is formed by:
    > Vertical axis: Smoothed variance (power)
    > Horizontal axis: Frequency (cycles per observation)

    More information is available here.

    My query, nevertheless, remains the same:

    What in the given dataset is occurring at the identified frequency?

    Would greatly appreciate guidance.

    Best regards,
    wirefree
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