d09197248e
Remove duplicate line
Upstream changes:
Changes in Version 0.9-40
* bptest() now optionally also accepts a "weights" argument and processes
weighted "lm" objects correctly (suggested by Robert Gulotty).
* The degrees of freedom (df) in the default coeftest() method can now also
be a vector of the same length as the coefficients.
Changes in Version 0.9-39
o Small improvements in handling of "df" attribute in coeftest() methods.
o In case update() is called within the default waldtest() method, it tries
harder to evaluate this in the calling environment (reported by Vincent
Arel-Bundock). This is still not guaranteed to find the right data but
should be more robust than the previous implementation. To avoid any such
issues it is recommended to call waldtest(object1, object2) and fitted
model objects (and not just update formulas).
Changes in Version 0.9-38
o coeftest.default() now includes attributes for "nobs" and "logLik" provided
that nobs() and logLik() extractors are available. This is in order to
facilitate model summaries a la broom::glance for "coeftest" objects
(suggested by Grant McDermott). The attributes can be extracted again
from the coeftest object with nobs() and logLik(), respectively.
o Optionally, the entire original model object x is saved as an attribute
"object" in coeftest(x, save = TRUE). Like nobs/logLik above, this should
also facilitate model summaries.
o waldtest.default() is stricter about detecting non-nestedness of models,
e.g., when under the alternative variables are added but the intercept
dropped.
o waldtest.lm() now uses . ~ 0 as the default reference model if waldtest(object)
tests an object without intercept (suggested by Kevin Tappe).
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