Message-ID: <Pine.LNX.4.44.0401051044520.4409-100000@reclus.nhh.no>
Date: 2004-01-05T09:46:02Z
From: Roger Bivand
Subject: r: lm question
In-Reply-To: <3FF92EBF.59C35255@stats.uct.ac.za>
On Mon, 5 Jan 2004, allan clark wrote:
> Hi all
>
> this is a silly question since i should know the answer.
>
> lm(y~x) perfroms linear regression with the intercept included.
>
> How do i estimate the equation without the intercept?
?formula:
"The '-' operator removes the specified terms, so that '(a+b+c)^2 - a:b'
is identical to 'a + b + c + b:c + a:c'. It can also used to remove the
intercept term: 'y~x - 1' is a line through the origin. A model with no
intercept can be also specified as 'y~x + 0' or '0 + y~x'."
Roger
>
> cheers
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>
--
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Breiviksveien 40, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 93 93
e-mail: Roger.Bivand at nhh.no