brms R package for Bayesian generalized multivariate models using Stan
The R easystats-project
Models' quality and performance metrics (R2, ICC, LOO, AIC, BF, ...)
Forecasting Functions for Time Series and Linear Models
An R package for causal inference in time series
Visualisation toolbox for beautiful and publication-ready figures
Statistical Rethinking course and book package
"Statistics for Data Scientists: 50 Essential Concepts"
RStan, the R interface to Stan