https://github.com/cran/bbmle
Tip revision: d57d09f81b6f2573d660cd90087bcc46a0038077 authored by Ben Bolker on 16 November 2007, 13:04:21 UTC
version 0.8.2
version 0.8.2
Tip revision: d57d09f
NEWS
0.2: added parnames, parnames<-
minor fix to allow "profiles" of 1-parameter models
(skip fdHess call)
minor change to print method for mle results
tweaking "vecpar" (to allow parameter vectors in objective function)
removed fdHess/nlme dependency
0.3: enhanced anova method, works with print.anova
tweaked namedrop() code -- ??
0.4 change AIC to AICc for corrections
add AICtab for weights, delta, sort ... options
expose error messages occuring within profile()
uniroot tries harder to find a valid endpoint
truncate terms in anova.mle at 80 characters
0.5 fix AICc bug! (was deviance+2*k*(k+1)/(n-k-1), not AIC+2*k*(k+1)/(n-k-1)
0.6 add experimental formula interface
change all names from mle to mle2 to avoid confusion/conflicts
with stats4 version of mle
change internal structure of data evaluation
worked on vignette
added optimizer slot (stub)
0.7 better df extraction in ICtab
minor bug fix for AICc (allows AICc of nls objects)
handle models with -1 in formula better:
starting values set "all equal"
made ANOVA formula line-length accessible
added skip.hessian and trace arguments to mle2
messed around with BIC definition -- attempt at consistency with nlme
added rudimentary support for nlminb, constrOptim
nlme now required for fdHess (which is required for
nlminb since it doesn't compute a finite-diff
Hessian)
0.7.5 change "ll" to "LL" in examples for clarity
tweaked anova reporting of models (wrap instead of truncating)
added (undocumented) show.points option to profile plot
to display actual locations of profile evaluation
tweaked profile to behave better when profiling variables
with constraints (upper, lower)
moved vignette to inst/doc where it belongs
ICtab hack to protect against package:aod definition of AIC(logLik)
added submit stub
tweaked slice.mle2-class docs for consistency
fiddled with vignette
preliminary code to allow non-monotonic profiles
preliminary add nlm to list of optimizers (untested)
add aod, Hmisc, emdbook to VignetteDepends and Suggests:
0.7.6 tweak vignette
fixed second major AICc bug (was fixed in mle2 method,
but not in logLik method)
0.7.7 fix bug in profiling: all optim() methods EXCEPT L-BFGS-B
return the value of the objective function if given a function
with no arguments/zero-length starting parameter vector
(this is the situation with "profiling" a 1-D function).
L-BFGS-B gives funky answers. added a check for this case.
(may need to check behavior for alternate optimizers (nlm etc))
[this behavior triggered a "found better fit" error when profiling
1D functions with L-BFGS-B]
changed behavior when finding better fit during profiling
to return new parameters
0.8 changed ICtab to allow either ICtab(x,y,z) or ICtab(list(x,y,z))
(L <- list(...); if is.list(L[[1]]) && length(L)==1)
0.8.1 fixed (?) environment bug
tried to use built-in relist, but failed: renamed relist
to "relist2" (try again later)
documented get.mnames (auxiliary function for ICtabs)
started to add gr (gradient) capability -- NOT TESTED
0.8.2 fixed bug in AICctab
cosmetic change to printing -- save call.orig
moved ChangeLog to NEWS