[R] Extract R-squared from summary of lm

[Paul Hiemstra]

Trafim Vanishek wrote:
> Dear all,
>
> I cannot find to explicitly get the R-squared or adjusted R-squared from
> summary(lm())
>
> Thanks a lot!
>
> 	[[alternative HTML version deleted]]
>
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> and provide commented, minimal, self-contained, reproducible code.
>   
See the documentation for summary.lm (?summary.lm):

summary(lm(speed~dist, cars))
attributes(summary(lm(speed~dist, cars)))

# Get the R^2
summary(lm(speed~dist, cars))$r.squared
summary(lm(speed~dist, cars))$adj.r.squared

cheers,
Paul

-- 
Drs. Paul Hiemstra
Department of Physical Geography
Faculty of Geosciences
University of Utrecht
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http://intamap.geo.uu.nl/~paul