One hundred seventy-nine new packages made it to CRAN in May. Here are my “Top 40” picks in twelve categories: Computational Methods, Data, Ecology, Epidemiology, Finance, Machine Learning, Networks, Science, Statistics, Time Series, Utilities, and Visualization.

Computational Methods

graDiEnt v1.0.1: Implements the derivative-free, optim-style Stochastic Quasi-Gradient Differential Evolution optimization algorithm published …

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