[R] Manually setting coefficients in an lm.

Greg Snow 538280 at gmail.com
Tue Nov 12 18:54:25 CET 2013


You can use the "offset" function as part of a formula in "lm" (and
other model fitting functions) to set a specific slope or set of
slopes.  Using this up front will give you the correct residuals,
standard errors, etc.  This is better than trying to modify a fitted
regression object.

On Tue, Nov 12, 2013 at 9:33 AM,  <COLLINL at pitt.edu> wrote:
> Greetings, I'm working on a project where I want to hand-tailor an lm.
> Specifically I want to construct an lm with an existing formula and then
> hand tailor the coefficients myself.  Is there an established method for
> that other than manipulating the $coefficients values?
>
>      Thank you,
>     Collin.
>
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-- 
Gregory (Greg) L. Snow Ph.D.
538280 at gmail.com



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