Hi:
Could anyone help me to clarify this: are the weights normalized inside lm
function (package:stats) before applied to the error term? For example:
>lm (cost ~ material, weights=quatity, data=receipt)
will lm normalize quatity such that sum(quatity) = 1? I traced to lm.wfit and
then the weights get transferred into a precompiled FORTRAN module so I can't
figure out. Thanks!
> version
_
platform sparc-sun-solaris2.9
arch sparc
os solaris2.9
system sparc, solaris2.9
status
major 1
minor 9.0
year 2004
month 04
day 12
language R
Yu Shao
Wadsworth Center
NY Department of Health
Albany, NY 12208
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