Results 1 to 3 of 3

Math Help - Non-linear regression Help

  1. #1
    Newbie
    Joined
    Jul 2011
    Posts
    1

    Non-linear regression Help

    Hello,

    I have a data set to which I want to apply a non-linear regression. I have found the best-fit equation which is:

    y=a + b * e^(-x/c)

    Does anyone know what the parameters stand for (in layman's terms ) ? How they effect the shape of the function?

    I know that:
    a=y intercept

    Someone suggested that b=amplitude and c=phase but how does this apply to an exponential function?

    Help!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Master Of Puppets
    pickslides's Avatar
    Joined
    Sep 2008
    From
    Melbourne
    Posts
    5,236
    Thanks
    29

    Re: Non-linear regression Help

    Quote Originally Posted by cburke View Post


    I know that:
    a=y intercept
    Really, how so?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    MHF Contributor
    Joined
    Aug 2007
    From
    USA
    Posts
    3,111
    Thanks
    2

    Re: Non-linear regression Help

    This is a very odd question. Call them "Steve", if you like. What meanins do they need?

    Generally, spltting things up and dividing and readjusting leads to interesting insights, but there is not necessarily anything mandatory to call things. You should pick somehting meaningful to you and to your application.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. perpendicular linear span (linear regression)
    Posted in the Advanced Algebra Forum
    Replies: 0
    Last Post: October 22nd 2011, 04:56 PM
  2. Linear Regression
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: August 25th 2010, 07:49 AM
  3. Linear Regression
    Posted in the Statistics Forum
    Replies: 1
    Last Post: January 31st 2010, 06:25 PM
  4. Regression fundamentals (linear, non linear, simple, multiple)
    Posted in the Advanced Statistics Forum
    Replies: 13
    Last Post: November 12th 2009, 07:47 AM
  5. Regression SS in multiple linear regression
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: June 20th 2009, 01:23 PM

Search Tags


/mathhelpforum @mathhelpforum