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    Re: Linear regression and other tools
    From: Antoine Couëtte
    Date: 2018 Oct 12, 10:44 -0700

    RE:Linear-regression-other-tools-Morris-oct-2018-g43053

    Dear Brad,

    Some ships can maintain an excellent DR during 20 minute time-periods at speeds much faster than 6 kts, hence significantly reducing the box of uncertainty.

    There is also a proven method to reduce systemic errors, namely observing all around the horizon, provided that dip - our greatest unknown - is constant all around which is most often the case.

    QUOTE

    "Let me flip it.  You managed to improve your accuracy, mid ocean, by 0.5NM.  Does it matter?"

    REPLY
    You are striving to do your best and to improve in a discipline - CelNav to name it - which is both a Science and an Art.
    Nowadays - and for the time being - you can even check your performance anytime and anywhere on Earth.
    As you are also enjoying some kind of honest pride through it, does it not matter too ?
    Antoine
       
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