bread.gmnl: Bread for Sandwiches
Description
Computes the ``bread'' of the sandwich covariance matrix for objects of class gmnl
.
Usage
# S3 method for gmnl
bread(x, ...)
Arguments
x
a fitted model of class gmnl
.
...
other arguments when bread
is applied to another
class object.
Value
The covariance matrix times observations
Details
For more information see bread
from the package sandwich.
References
Zeileis A (2006), Object-oriented Computation of Sandwich
Estimators. Journal of Statistical Software, 16(9), 1--16.