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  1. B

    Any EE engineers here tried spectrum based trading systems?

    Yes -- and it's been an ongoing concern of mine to eliminate measures of standard deviation as they assume a stationary distribution. Same with detrending. It simply seems to be a false way of grafting a (momentarily) normal distribution on to a non-stationary one. Leakage refers to the...
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    Any EE engineers here tried spectrum based trading systems?

    Hi there, and thanks for your post. Regarding harmonic bin resolution, can you explain how this would be a factor? An FFT can extract 1/32 wavelengths from a 64 point dataset, for example. It seems to me that those objections (such as Nyquist) are primarily concerned with total inversion...
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    Any EE engineers here tried spectrum based trading systems?

    Butterworth has to do with MESA, as I understand it. Regarding Butterworth, detrending and MESA it would seem to me to be problematic to detrend where the true trend is unknown. Therefore this appears superficially to be a problem with MESA. Regarding your MEM comments, it seems to me that...
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    Any EE engineers here tried spectrum based trading systems?

    Alright, I'll bite -- why would spectra generated from MESA -- a Butterworth filter for detrending (which is a fancy type of moving average) be superior to spectra generated from an FFT?
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    Any EE engineers here tried spectrum based trading systems?

    Given that you can implement any resolution (as long as it's a power of 2) and any wavelength of filter you desire with an FFT, this strikes me as an odd statement. Within a single transform, true, however not for the last data point in a generated series (as there is no future data)...
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    Snow because of global warming!

    If you use more capital letters you'll be more likely to convince me that this actually happened. Perhaps you should also throw in a few dozen exclamation marks for good measure.
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    Snow because of global warming!

    I think you're confusing analysis of data with a fight between the "jocks" and the "nerds."
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    Snow because of global warming!

    :) Highspeed cable? When emissions regulations are introduced the cities will be burned to the ground, your house will be destroyed, your family will be dead and you'll only get Comcast. Yes, that's right, Comcast.
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    Liberals and Black America

    No, it's really not. And it's not because of typing rapidly, either. You have a series of grammatical mistakes ("write something incorrect" for example). In fact, it is genuinely ironic that you're attacking a fraction of a minority for its lack of communication skills when your...
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    Snow because of global warming!

    Very interesting. Quite often people won't understand statistics as easily as animations.
  11. B

    Liberals and Black America

    Physician, heal thyself. Given your writing ability you should be focused on improving it rather than worrying about how others are communicating.
  12. B

    Liberals and Black America

    After 10 seconds of Googling I found a graph of black dropout rates, and dropout rates for blacks have been steadily improving since 1960: http://manyeyes.alphaworks.ibm.com/manyeyes/visualizations/stack-graph-of-high-school-drop-out-
  13. B

    Snow because of global warming!

    Perhaps that explains some of the GDP gains from some of the countries that have exceeded their Kyoto goals.
  14. B

    Snow because of global warming!

    Certainly you cannot support your theory that the "cost of the cure" is worse than the cost of the disease, as the countries involved aren't reflecting any slowdown.
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    Snow because of global warming!

    Okay, then take all the countries that have exceeded their Kyoto targets: http://www.davidsuzuki.org/files/climate/cop/Meeting_Kyoto_Targets.pdf Then follow whether their GDP declined immediately after Kyoto in comparison to the US or Eurozone GDP decline. Greece exceeded Kyoto...
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    Snow because of global warming!

    Australia, as one example, has already met its Kyoto goals (actually it has exceeded them) and it's economy has continued to grow. There simply isn't a simple correlation between less pollution and a worse economy -- in fact, it could be said that the pollution controls generate economic...
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    Snow because of global warming!

    Nothing you wrote here is true.
  18. B

    Snow because of global warming!

    By all means post all of the National Science Academies which have taken positions against AGW. We'll wait.
  19. B

    Snow because of global warming!

    No, "seems" is not, and he was right to tease you for your ignorance. NASA launched its ICESAT satellite for measuring ice cover using laser altimetry in 2003. You can Google it online, and you can even find that the data was used by the National Snow and Ice Data Center to conclude that...
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    Snow because of global warming!

    Well I enjoyed the post, anyway. It could be a fluke, just like the additional levels of precipitation (snow) could be a fluke despite AGW theory predicting it.
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