[R] help on retrieving output from by( ) for regression

[TEMPL Matthias]

Look more carefully at 
?lm 
at the See Also section ...

X <- rnorm(30)
Y <- rnorm(30)
lm(Y~X)
summary(lm(Y~X))

Best,
Matthias


> Hi all 
> 
> I used a function 
> > qtrregr <- by(AB, AB$qtr, function(AB) lm(AB$X~AB$Y))
> 
> objective is to run a regression on quartery subsets in the 
> data set AB, having variables X and Y, grouped by variable qtr.
> 
> Now i retrieved the output using qtrregr, however it only 
> showed the coefficients (intercept and B) with out 
> significant levels and residuals for each qtr. Can some on 
> help me on how can retrieve the detailed regression output.
> 
> rgds
> 
> snvk
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list 
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read 
> the posting guide! http://www.R-project.org/posting-guide.html
>