[R] Piecewise Linear Regression

[Sean Davis]

Abhyuday,

There are a number of answers in the archives:

http://www.google.com/u/newcastlemaths?q=piecewise+linear+regression&sa=Google+Search

Do any of those meet your needs?

Sean

----- Original Message ----- 
From: "Abhyuday Mandal" <amandal at isye.gatech.edu>
To: <r-help at stat.math.ethz.ch>
Sent: Monday, May 30, 2005 7:38 PM
Subject: [R] Piecewise Linear Regression


> Hi,
>
> I need to fit a piecewise linear regression.
>
> x = 
> c(6.25,6.25,12.50,12.50,18.75,25.00,25.00,25.00,31.25,31.25,37.50,37.50,50.00,50.00,62.50,62.50,75.00,75.00,75.00,100.00,100.00)
> y = 
> c(0.328,0.395,0.321,0.239,0.282,0.230,0.273,0.347,0.211,0.210,0.259,0.186,0.301,0.270,0.252,0.247,0.277,0.229,0.225,0.168,0.202)
>
> there are two change points. so the fitted curve should look like
>
>
>
> \
> \  /\
>  \/  \
>       \
>        \
>
> How do I do this in R ?
>
> Thank you,
> Abhyuday
>
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