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2932
2002 Feb 04
2
Help with accessing elements of a list
Hi,
As part of the analysis of a longitudinal study, I have a list, called wg,
on R 1.3.1 for windows created as follows -
wg <- by(xx, xx$mrn, function(xx) lm(xx$maternal.wt ~ xx$gestation,
data=xx))
xx is a data.frame, and so wg contains the results of 293 linear
regressions, as lm objects.
Now what I want is to extract the 293 intercepts and regression coefficients
as a vector, and