HANGES IN VERSION 1.1-27.1:
USER-VISIBLE CHANGES:
* 'influence.merMod' allows user-specified starting parameters
* cleaned up performance vignette
BUG FIXES:
* 'cooks.distance' now works with objects computed by
'influence' method
* 'influence.merMod' now works with 'glmer' models using
'nAGQ=0'
* 'predict' (with new data) and 'simulate' methods now work
for models with >100 levels in a random effect grouping
variable (GH #631)
CHANGES IN VERSION 1.1-27 (2021-05-15):
USER-VISIBLE CHANGES:
* improvements from Lionel Henry (via
https://github.com/lme4/lme4/pull/587) to fix corner cases
in data checking; also resolves GH #601 (allFit scoping)
* 'getME(., "lower")' now has names (request of GH #609)
* improved detection of 'NaN' in internal calculations
(typically due to underflow/overflow or out-of-bounds linear
predictors from non-constraining link functions such as
identity-link Gamma models)
* 'influence.merMod' allows parallel computation
* the 'statmod' package is no longer required unless
attempting to simulate results from a model with an inverse
Gaussian response
BUG FIXES:
* long formulas work better in 'anova' headings (GH #611)
CHANGES IN VERSION 1.1-26 (2020-11-30):
BUG FIXES:
* 'predict', 'model.frame(.,fixed.only=TRUE)' work with
variable names containing spaces (GH #605)
* 'simulate' works when original response variable was logical
* 'densityplot' handles partly broken profiles more robustly
NEW FEATURES:
* 'thpr' method for 'densityplot()' (for plotting profiles
scaled as densities) gets new arguments
CHANGES IN VERSION 1.1-25 (2020-10-23):
* Set more tests to run only if environment variable
'LME4_TEST_LEVEL'>1
CHANGES IN VERSION 1.1-24 (never on CRAN):
USER-VISIBLE CHANGES:
* 'anova()' now returns a p-value of 'NA' if the df difference
between two models is 0 (implying they are equivalent
models) (GH#583, @MetaEntropy)
* speedup in 'coef()' for large models, by skipping
conditional variance calculation (Alexander Bauer)
* 'simulate.formula' machinery has changed slightly, for
compatibility with the 'ergm' package (Pavel Krivitsky)
* informational messages about (non-)convergence improved (GH
#599)
* improved error messages for 0 non-NA cases in data (GH #533)
NEW FEATURES:
* 'getME(.,"devfun")' now works for 'glmer' objects.
Additionally, 'profile'/'confint' for GLMMs no longer depend
on objects in the fitting environment remaining unchanged
(GH #589). This change also affects likelihood profiling
machinery; results of 'glmer' profiling/CIs may not match
results from previous versions exactly.
BUG FIXES:
* improved handling/documentation of 'glmer.nb' controls (GH
#556)
* 'predict' works better for 'gamm4' objects (GH #575)
* resolved some long-standing UBSAN issues (GH #561)
CHANGES IN VERSION 1.1-23 (2020-03-06):
This is primarily for CRAN compliance (previous submission was
retracted to allow time for downstream package adjustments).
* Some PROTECT/UNPROTECT fixes
CHANGES IN VERSION 1.1-22 (never on CRAN):
USER-VISIBLE CHANGES:
* prediction now works better for factors with many levels
(GH#467, solution by @sihoward)
* minor changes to argument order in '[g]lmerControl'; default
tolerance for convergence checks increased from 0.001 to
0.002 for 'glmerControl' (now consistent with 'lmerControl')
* 'lmer(*, family="<fam>")' is no longer valid; it had been
deprecated since 2013-06.
* 'lmer()', 'glmer()', and 'nlmer()' no longer have a formal
'...' argument. This defunctifies the use of a 'sparseX =
.' argument and will reveal some user errors, where
extraneous arguments were previously disregarded.
* In 'isSingular(x, tol)', the default tolerance ('tol') has
been increased from '1e-5' to '1e-4', the default of
'check.conv.singular' in 'g?lmerControl()'.
* for clarity and consistency with base R methods, some column
names of 'anova()' output are changed: "Df" becomes "npar",
"Chi Df" becomes "Df" (GH #528)
* 'simulate()' now works with inverse-Gaussian models (GH #284
revisited, @nahorp/Florian Hartig)
* single-model mode of 'anova()' now warns about unused
arguments in ... (e.g. 'type="III"')
* default tolerances for 'nloptwrap'/BOBYQA optimizer
tightened ('xtol_abs' and 'ftol_abs' were 1e-6, now 1e-8).
(To revert to former tolerances, use
'control=lmerControl(optimizer="nloptwrap",
optCtrl=list(xtol_abs=1e-6, ftol_abs=1e-6))'.)
BUG FIXES:
* improved checking for missing data (@lionel-)
* internal 'checkZrank()' should be able to deal with
('Matrix' package) 'rankMatrix()' returning 'NA'.
* 'allFit(fm)' now works for a model that had an explicit
'control = lmerControl(..)' call.
* internal 'getStart()' now works when model's 'start' was
specified as a list, and when called from 'drop1()' on a
submodel, fixing GH #521.
* internal function 'mkdevfun' now works even if there is an
extraneous 'getCall' function defined in the global
environment (GH #535)
* 'allFit()' works even if a variable with symbol 'i' is used
somewhere in the original model call (GH #538, reported by
Don Cohen); generally more robust
* 'glmer.nb' works even if an alternative version of
'negative.binomial' (other than the one from 'MASS') is
loaded in the workspace (e.g. by the 'GLMMadaptive' package)
(GH#516)
* 'level' argument is now honoured by 'confint(...,
type="boot", level=...)' (GH #543)
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