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    Re: That darned old cocked hat
    From: Tom Sult
    Date: 2010 Dec 10, 00:44 -0600

    I think it would be interesting to see the results of various
    methods.  But I must confess, I use "Mark I eyeball" to estimate best
    fit.
    
    Thomas A. Sult, MD
    3rd Opinion
    1415 First First St. South #5
    Willmar, MN 56201
    320 235 2101 Office
    www.3rdOpinion.us
    tsult@mac.com
    
    
    
    
    
    
    On Dec 9, 2010, at 3:51 PM, George Huxtable wrote:
    
    > Peter Fogg wrote-
    >
    > "3. Use of the slope technique, using the calculated slope, is the
    > best
    > method presently known to reduce random observational error."
    >
    > That is no more than an assertion, one that Peter Fogg has been making
    > repeatedly for some years. He has claimed that he can get closer to
    > the
    > truth than can a statistical least-squares fit, or simply averaging
    > the
    > observations for time and altitude.
    >
    > Recently-joined Navlist members will not be aware that a year or two
    > back,
    > I posted several sets of artificially-generated observations, with
    > slope
    > and intercept known (but not disclosed). These data points had then
    > been
    > perturbed by having computer-generated random offsets added to them,
    > to
    > simulate real data, as closely as was possible..
    >
    > Peter Fogg was then challenged to apply whatever methods he chose,
    > to show
    > us whether he could discover those original undisclosed values, more
    > precisely than could be done by a standard statistical analysis. He
    > declined to take part.
    >
    > That test could always be repeated, whenever Peter Fogg chooses.
    >
    > George.
    >
    > contact George Huxtable, at  george@hux.me.uk
    > or at +44 1865 820222 (from UK, 01865 820222)
    > or at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.
    >
    >
    >
    >
    
    
    
    
    

       
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