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Want to create some data

  1. Jul 4, 2012 #1
    see the follwing print out - you can imagine what the trend might be - the dataset i want to make??

    how can i create that data. i mean that sort of curve twice - the second time of a lower volume with noise added. make sense?


    http://imageshack.us/f/703/40382180.png
    sorry for some reason i can't embed.


    thanks!! precision is unimportant atm. if i knew how to joing peaks i could do it easy...
     
  2. jcsd
  3. Jul 4, 2012 #2

    Integral

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    Looks a lot like a 1/x relationship.
     
  4. Jul 4, 2012 #3
    yup. i started a new thread now in analysis section if you want to help :)


    Luke
     
  5. Jul 4, 2012 #4
    oh i can create data approaching the trend.... i don't know how to do so efficiently yet tho ha.
     
  6. Jul 9, 2012 #5
    i was trying to run ifft on excel but i then want to manipulate the output [basically - everything above the median amp = 1, everything below = -1. turning into steps]... but this destroys the fft - completely. is there no way around that - i was thinking of using solver and ifft in excel together but that's impossible. so can i do so without programming, and anyway, is this just a completel dead end?
     
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