[R] lm regression query

[Bert Gunter]

Smells like homework to me. If so, we don't do homework on this list.

-- Bert

On Thu, Feb 14, 2013 at 3:55 PM, email <email8889 at gmail.com> wrote:
> Hello:
>
> I have a 4-column dataset: Crime, Education, Urbanization, Age. I want to
> construct a multiple linear regression to find the effect of Education,
> Urbanization, and Age on Crime"
>
> lm(Crime ~ Education + Urbanization + Age)
>
> If I use + in above statement, does it mean it will build a model to find
> the relationship between Crime and Education when Urbanization and Age are
> held constant?
>
> What would be the difference if I drop the term Urbanization + Age ?
>
> lm(Crime ~ Education)
>
> Regards:
> John
>
>         [[alternative HTML version deleted]]
>
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-- 

Bert Gunter
Genentech Nonclinical Biostatistics

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