[R-sig-eco] Extracting information from lm results

[Stephen Thackeray]

Dear all,

I suspect that this might be a bit basic, but here goes anyway...

I am soon to run a large number of linear regressions and I would like to extract a number of details from the models, and then collate them in a dataframe as a summary of the overall block of analyses. I can successfully extract the intercept and slope by using, for example:

lm1<-lm(ASTF~Year,na.action=na.omit,subset=yr10==T)
a1<-lm1$coefficients[1]
b1<-lm1$coefficients[2]
out1<-cbind("ASTF","1996-2005",lm1$coefficients[1],lm1$coefficients[2])

However, I also would like to extract the following too:

1) the number of data points in the analysis, n
2) the standard error of the slope
3) the P value
4) the R-squared value

Is it possible to extract these parameters in the same way as the slope and intercept, to save a lot of typing?

Any help much appreciated!

Steve Thackeray



Dr Stephen Thackeray 
Lake Ecosystem Group
CEH Lancaster
Lancaster Environment Centre
Library Avenue
Bailrigg
Lancaster
LA1 4AP

Email: sjtr at ceh.ac.uk
Tel: +44 (0) 1524 595852
Fax: +44 (0) 1524 61536

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