[R] Linear Regression

livia yn19832 at msn.com
Tue Oct 2 13:04:53 CEST 2007


Hello,

I would like to fit a linear regression and when I use summary(), I got the
following result:

Call:
lm(formula = weight ~ group - 1)

Residuals:
    Min      1Q  Median      3Q     Max 
-1.0710 -0.4938  0.0685  0.2462  1.3690 

Coefficients:
         Estimate Std. Error t value Pr(>|t|)    
groupCtl   5.0320     0.2202   22.85 9.55e-15 ***
groupTrt   4.6610     0.2202   21.16 3.62e-14 ***
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 

Residual standard error: 0.6964 on 18 degrees of freedom
Multiple R-Squared: 0.9818,     Adjusted R-squared: 0.9798 
F-statistic: 485.1 on 2 and 18 DF,  p-value: < 2.2e-16 

In fact, I do not need them all. Is there a way of exacting part of the
infomation, like the Coefficient or Multiple R-Squared?
-- 
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