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    Re: Slopes and least squares
    From: Peter Fogg
    Date: 2010 Dec 10, 07:00 +1100


     Lars Bergman wrote:

    Given a set of data pairs

    Where do these data pairs come from, Lars?  Observations?

    (times and altitudes (or distances)), it is possible to calculate a line of best fit

    If the data pairs come from observations then a line of best fit derived from them could well be the incorrect line. See:
    http://www.starpath.com/resources2/sight_average.pdf


       
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