You can learn a lot from the help files. Check out the help files for the
lm() and summary.lm() functions
?lm
?summary.lm
You can extract the beta values in a few different ways.
These two will give you just the estimates in a vector:
coef(result)
result$coef
These two will give you the estimates and more in a matrix:
coef(summary(result))
summary(result)$coef
Jean
Krunal Nanavati <krunal.nanav...@cogitaas.com> wrote on 07/26/2012
07:28:02 AM:
>
> Hi,
>
> I have a query on regression output generated by R.
>
> > result=lm( Y~X , data=trail)
> > summary(result)
>
> After running this 2 statements the following output is generated.
>
> Call:
> lm(formula = Y ~ X, data = trail)
>
> Residuals:
> Min 1Q Median 3Q Max
> -245.30 -90.77 -30.30 54.99 532.78
>
> Coefficients:
> Estimate Std. Error t value Pr(>|t|)
> (Intercept) 245.2982 62.1307 3.948 0.000376 ***
> X 0.5192 0.1752 2.963 0.005533 **
> ---
> Signif. codes: 0 ?***? 0.001 ?**? 0.01 ?*? 0.05 ?.? 0.1 ? ? 1
>
> Residual standard error: 169.1 on 34 degrees of freedom
> Multiple R-squared: 0.2052, Adjusted R-squared: 0.1818
> F-statistic: 8.777 on 1 and 34 DF, p-value: 0.005533
>
> From this output, I intend to use the beta values to calculate
> elasticities. Is this possible directly in R?
>
> If not, then when I paste this output in Excel, It is pasted as an
image,
> and thus I cannot use the beta values for calculating any other metric.
>
> Can anyone please help me out!!!
>
> Thanks & Regards,
>
> Krunal Nanavati
> 9769-919198
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