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Re: [ai-geostats] Who is J. W. Merks???

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  • M. Nur Heriawan
    Dear Perry, Please visit this website: http://www.geostatscam.com/index.htm You might know him better... :-) Regards, Nur Heriawan ... Dept. of Mining Eng.
    Message 1 of 2 , Apr 30, 2005
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      Dear Perry,

      Please visit this website:
      http://www.geostatscam.com/index.htm

      You might know him better... :-)

      Regards,

      Nur Heriawan
      ------------
      Dept. of Mining Eng.
      Institut Teknologi Bandung
      Jl. Ganesha 10 Bandung 40132
      INDONESIA

      --- PCollier@... wrote:

      > Hi List
      >
      > I was searching for geostats books on www.amazon.com
      > <http://www.amazon.com>
      > and came across a reviewer by the name of J. W.
      > Merks who has trashed every
      > single geostatistical publication available. This
      > is what he had to say
      > about Geostatistics : Modeling Spatial Uncertainty
      > (Wiley Series in
      > Probability and Statistics) by
      >
      <http://www.amazon.com/exec/obidos/search-handle-url/index=books&field-autho
      > r=Jean-Paul%20%20Chil%E8s/103-9170296-4642251>
      > Jean-Paul Chil�s,
      >
      <http://www.amazon.com/exec/obidos/search-handle-url/index=books&field-autho
      > r=Pierre%20%20Delfiner/103-9170296-4642251> Pierre
      > Delfiner :
      >
      > "Geostatistics is a fatally flawed variant of
      > mathematical statistics
      > because it violates the requirement of functional
      > independence and ignores
      > the concept of degrees of freedom. Google "bre-x
      > bogus barren" and look
      > under "Geostatistical Fiction" to find out what the
      > author and similarly
      > challenged scholars know about degrees of freedom.
      > Ironically, unbiased
      > statistical inferences are impossible to obtain
      > without taking degrees of
      > freedom into account. The author has been asked to
      > explain why the variance
      > of a SINGLE distance-weighted average is replaced
      > with the variance of a SET
      > of distance-weighted averages. His reply will be
      > posted ASAP."
      >
      > He said this about the GSLIB2 manual:
      >
      > "Geostatistics is a fundamentally flawed variant of
      > mathematical statistics
      > because it violates the requirement of functional
      > independence and ignores
      > the concept of degrees of freedom. Each weighted
      > average had its on variance
      > wen Sir Ronald A Fisher was knighted in 1952 but
      > when the distance-weighted
      > average mutated into an honorific kriged estimate,
      > it became the first and
      > only weighted average to be reborn without its
      > variance. Incredibly, kriging
      > variances and kriging covariances of sets of kriged
      > estimates are the
      > cornerstones of geostatistics. Incredible indeed
      > because the variance of a
      > set of distance-weighted averages is as inane a
      > measure for variability,
      > precision and risk as its covariance is for spatial
      > dependence.
      >
      > Hailed by pundits as a new science but dismissed by
      > skeptics as a sham,
      > geostatistics is applied to small data sets in large
      > sample spaces by
      > assuming spatial dependence, interpolation by
      > kriging, perfect smoothing and
      > rigging the rules of mathematical statistics.
      > Statistics 101 ought to be
      > compulsory for those who assume the requirement of
      > functional independence
      > can be violated a little but not a lot."
      >
      >
      > Can anyone tell me what this guy is talking about?
      > Is he a nutter? Does he
      > need to get a life? Who is he anyway?
      >
      >
      > Cheers
      > Perry
      >
      >
      > Perry Collier
      >
      > Senior Mine Geologist
      > Ernest Henry Mine
      > Xstrata Copper Australia
      > * (07) 4769 4527
      > * (07) 4769 4555
      > * pcollier@...
      > " http://www.xstrata.com <http://www.xstrata.com/>
      >
      > PO Box 527
      > Cloncurry QLD 4824
      > Australia
      >
      > "I like rich people. I like the way they live. I
      > like the way I live when
      > I'm with them..."
      >
      > From Roger & Hammerstein's Sound of Music


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