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bbolker

Ben Bolker

Recently Published

diagonal var-cov matrices and reparameterization
demonstrates *non*-equivalence of models with structured variance-covariance matrices under reparameterization
Publish Document
Wald std errors for random-effects variances etc. from lme4 models
lme4 convergence testing problems
exploration of some of the problems with *testing* for convergence in lme4
Publish Document
a small Gamma GLMM example
stats stuff you should think about
basic ideas about experimental design, exploratory analysis, etc.
SIR stoch sim/gillespie
A quick&dirty implementation of a Gillespie algorithm for running SIR models
glmer with constraints
Quickie reprodubility graph
Grabbing & plotting data from Vines et al. 2014 and Young 2015
lme4 refitting speedups
toenail_check
comparisons of Laplace approximation implementations for oncholysis (toenail) data
proftest
lme4 profile testing
backtransformation issues
glmer_offset
exploring issues with an offset in glmer
Reyes_rogers
an example of fitting the Rogers random predator equation where it turns out that least-squares Holling type II is fine
zinb_power
salamander
hazodds2
troubleshooting_conv
lme4 troubleshooting example
brant_survive
fit logistic models (regular GLM or GLMM) with power-logistic links to account for exposure
varwald
schizo
relrisk
varFac
more simulation/fitting of models where residual or RE variance varies across levels of a fixed factor
lme4_sims
kt_rep_example
weak vs strong Allee effects
GLMMs: worked examples
Beverton-Holt fitting example
Salamander GLMM
Haiku evaluation
Degenerate design matrices
Stuff with contrasts
“Downdated VtV” example
Mixed model simulations
Math sounds
Carvalho data analysis
Canadian homicide rates
Aggregation issue
LME code
Uncertainty of fitness ratios
fir analysis
ace_example
running ace (ancestral state reconstruction) from ape on a small, badly behaved problem