Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Re: Fit vs Regression: what is the difference?
    From: Frank Reed
    Date: 2018 Oct 22, 07:09 -0700

    Tony, you wrote:
    "What is the difference between a "fit" and a "regression"? Which one is more accurate?"

    There are many resources that address this question. For example, if you visit Google and search on "fit vs regression", you'll find links to a very similar question on quora and another on stackexchange and even a nice article on Wikipedia. You should also read about overfitting. When you have a small number of data points and you try to determine a polynomial of relatively high order from those points, you are "overfitting" the data. Normally I would not send someone "off into the internet", but regression and curve-fitting are basic mathematical and statistical topics with, at best, peripheral relevance to celestial navigation, so in this case I think that's the best option. You can learn a great deal from the links above.

    Frank Reed

    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.

    Email Settings

    Posting Code:

    Custom Index

    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site