[Rd] problems extracting parts of a summary object
Ross Boylan
ross at biostat.ucsf.edu
Mon Mar 22 23:03:51 CET 2010
summary(x), where x is the output of lm, produces the expectedd display,
including standard errors of the coefficients.
summary(x)$coefficients produces a vector (x is r$individual[[2]]):
> r$individual[[2]]$coefficients
tX(Intercept) tXcigspmkr tXpeld tXsmkpreve mn
-2.449188e+04 -4.143249e+00 4.707007e+04 -3.112334e+01 1.671106e-01
mncigspmkr mnpeld mnsmkpreve
3.580065e+00 2.029721e+05 4.404915e+01
> class(r$individual[[2]]$coefficients)
[1] "numeric"
rather than the expected matrix like object with a column for the se's.
When I trace through the summary method, the coefficients value is a
matrix.
I'm trying to pull out the standard errors for some rearranged output.
How can I do that?
And what's going on? I suspect this may be a namespace issue.
Thanks.
Ross Boylan
P.S. I would appreciate a cc because of some mail problems I'm having.
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