Dear Rodrigo,
The model.matrix() function extracts the model matrix from the object
mod.duncan.hub. To see the contents of the model matrix, just print X
(i.e., enter X at the R command prompt). When you do this, you'll see
that the first column of X is the constant regressor, containing 1's.
The
Hello R-listers! My first post to the list is a very simple one for those
who use the software continuosly. I am trying to understand the fixed-x
resampling and random-x-resampling method proposed by Fox about
Bootstrapping. The doubt that I have is on the side of the model run in one
of the functi
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