[R] getting the std errors in the lm function

Peter Dalgaard p.dalgaard at biostat.ku.dk
Mon Mar 8 12:32:54 CET 2004


Fulvio Copex <copellifulvio at yahoo.it> writes:

> Hello,
> I have a simple question for you:
> making:
> mylm<-lm(y~x)
> summary(mylm)
> I get the following results:
> ******************************************************
> Coefficients:
>             Estimate Std. Error t value Pr(>|t|)    
> (Intercept) 16.54087    0.19952   82.91   <2e-16 ***
> x[1:19]     -2.32337    0.04251  -54.66   <2e-16 ***
> ******************************************************
> now I can access easily with
> mylm$coefficients[[1]]
> mylm$coefficients[[2]]
> at the Estimate 16.54087 and -2.32337.

[coefficients(mylm)[[1]] would be preferable]

> how can I access at the Std. Error 0.19952 and 0.04251 ?


m <- coefficients(summary(mylm))
m[1,2]
m[2,2]

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907




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