uRegress
objectsExtracts dfbeta from uRegress
objects by relying on
functionality from the stats
package. Note that
dfbeta
and dfbetas
are not the same (dfbetas
are
less than the dfbeta
values by a
scaling factor that reflects both the leverage of the observation in
question and the residual model error).
# S3 method for uRegress
dfbeta(model, ...)
a matrix of dfbeta values, with a row for each observation and a column for each model coefficient
an object of class uRegress
, as returned by
regress.
other arguments to pass to stats::dfbeta