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Priors in glmmTMB9 days ago
Motivation | Load packages | Culcita example: near-complete separation | Gopher tortoise example: mitigate singular fit | Zero-inflation | TO DO/FIX ME | Development issues | References
DHARMa: residual diagnostics for hierarchical (multi-level/mixed) regression models13 days ago
Motivation | Workflow in DHARMa | Installing, loading and citing the package | Calculating scaled residuals | Plotting the scaled residuals | Goodness-of-fit tests on the scaled residuals | Simulation options | Refit | Conditional vs. unconditional simulations | Integer treatment / randomization | Calculating residuals for groups or subsets | Reproducibility notes, random seed and random state | Interpreting residuals and recognizing misspecification problems | General remarks on interpreting residual patterns and tests | Recognizing over/underdispersion | Residual patterns of over/underdispersion | Formal tests for over/underdispersion | Zero-inflation / k-inflation or deficits | Residual patterns | Formal tests for zero-inflation | Testing generic summary statistics, e.g. for k-inflation or deficits | Heteroscedasticity | Detecting missing predictors or wrong functional assumptions | Residual correlation structures (temporal, spatial, phylogenetic) | Case studies and examples | Budworm example (count-proportion n/k binomial) | Owl example (count data) | Notes on particular data types | Poisson data | Proportional data | Binomial data | Supported packages and frameworks | lm and glm | lme4 | mgcv | gamm4 | glmmTMB | spaMM | GLMMadaptive | phylolm | phyr | brms | Unsupported packages | Importing external simulations (e.g. from Bayesian software or unsupported packages)
DHARMa for Bayesians29 days ago
Basic workflow | Example in Jags | Exercise | Conditional vs. unconditional simulations in hierarchical models | Statistical differences between Bayesian vs. MLE quantile residuals
Vignette's Title5 months ago
basic examples of glmmTMB usage5 months ago
Covariance structures with glmmTMB5 months ago
Overview | The AR(1) covariance structure | Demonstration on simulated data | Increasing the sample size | The unstructured covariance | The Toeplitz structure | Compound symmetry | Anova tables | Adding coordinate information | Ornstein–Uhlenbeck | Spatial correlations | Matérn | Gaussian | Exponential | A spatial covariance example | Mappings | Unstructured | Generalized latent variable model | Reduced-rank | Proportional | Equal | Construction of structured covariance matrices | References
Model evaluation10 months ago
Troubleshooting with glmmTMB11 months ago
Warnings | Model convergence problem; non-positive-definite Hessian matrix; NA values for likelihood/AIC/etc. | Example 1. | Example 2. | Example 3. | Model convergence problem: eigenvalue problems | NA/NaN function evaluation | false convergence | Errors | NA/NaN gradient evaluation | gradient length
Post-hoc MCMC with glmmTMB1 years ago
Overview | Setup | Salamander example | Metropolis-Hastings (DIY) | tmbstan | Sleep study example
Cryptographic Hashing in R2 years ago
Compare to digest
Generating Secure Random Numbers in R2 years ago
Secure Random Numbers
Simulate from a fitted glmmTMB model or a formula2 years ago
Simulating from a fitted model | Simulating from scratch (de novo) | example 1: linear regression | example 2: random effects (including correlations) | example 3: AR1 model | FIXME/TO DO
Hacking glmmTMB3 years ago
Adding a family | C++ | modify glmmTMB.cpp | R code | modifying family.R | modifying glmmTMB.R | updating NAMESPACE | updating enum.R | Finishing up | Reinstall | Test | Additional distributional parameters | Adding a covariance structure | C++ code | Structure of a glmmTMB object
Parallel optimization using glmmTMB4 years ago
Notes on OpenMP support | System information
Combining tables5 years ago
Constructing tables5 years ago
Adding headers
Some minimal examples5 years ago
Adding headers | Combining tables | Formatting tables | Merged header columns | Alternative pipe syntax
Styling tables5 years ago
Formatting tables | Merged header columns | Alternative pipe syntax | Working with colors | Data generation | Table construction
Building a regression table5 years ago
Modelling titanic survival | Data preparation | Table construction
Miscellaneous examples5 years ago
Beta dispersion model
Fun with bignum: how RSA encryption works6 years ago
RSA key generation | How RSA encryption works
NMR Data Analysis Tutorial6 years ago
Overview | Prerequisites | Overview of Nightingale blood biomarker data | Rename alternative biomarker names | Association analysis | Join the blood biomarker data with other variables | Linear regression | Forest plot | Statistical significance for multiple testing | Cox proportional hazards regression | A forestplot for all Nightingale blood biomarkers | Final remarks | References
Using ggforestplot6 years ago
Overview | Installation | Usage | Adding information on statistical significance | Comparing several traits | Grouping the biomarkers | Plotting odds / hazard ratios
Twitter API Data8 years ago
Downloading Data | Example
Importing and exporting RSA/DSA/EC keys10 years ago
The DER format | The PEM format | The OpenSSH format | The JSON Web Key (JWK) format