Re: [R] Piecewise Linear Regression

From: Sean Davis <sdavis2_at_mail.nih.gov>
Date: Tue 31 May 2005 - 09:51:13 EST

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

> 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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R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue May 31 09:55:41 2005

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