visualisation and analysis of food web networks
Calculates twelve commonly-used, basic measures of food
web network structure from binary, predator-prey matrices:
species richness, connectance, total number of links, link
density, number of trophic positions, predator:prey ratio, and
fraction of carnivores, herbivores, top species and
intermediate species.  Employs food web language in the code
and output, translates between a couple of common food web
formats, can handle food webs consisting of multiple levels,
and can automate the analysis for a large number of webs. The
program produces 3-dimensional graphs of high quality that can
be customized by the user.

person("Thomas", "Mailund", email = "mailund@birc.au.dk", role = c("aut", "cre"))
Provides functionality for manipulating functions and translating them
in metaprogramming.
covr, testthat, knitr, rmarkdown, microbenchmark

Fitting Bayesian and MLE Football Models
This is the first package allowing for the estimation,
visualization and prediction of the most well-known
football models: double Poisson, bivariate Poisson,
Skellam, student_t. The package allows Hamiltonian
Monte Carlo (HMC) estimation through the underlying Stan
environment and Maximum Likelihood estimation (MLE, for
'static' models only). The model construction relies on
the most well-known football references, such as
Dixon and Coles (1997) <doi:10.1111/1467-9876.00065>,
Karlis and Ntzoufras (2003) <doi:10.1111/1467-9884.00366> and
Egidi, Pauli and Torelli (2018) <doi:10.1177/1471082X18798414>.
rstan (>= 2.18.1), arm, reshape2, ggplot2, bayesplot,
matrixStats, extraDistr, parallel, metRology, dplyr, numDeriv,
tidyverse, magrittr
testthat, knitr (>= 1.37), rmarkdown (>= 2.10),
engsoccerdata, loo

Penalties in the German Men's Football Bundesliga
Leo N. Geppert [aut, cre], Peter Gnändinger [ctb], Katja Ickstadt [ctb],
Björn Bornkamp [ctb], Arno Fritsch [ctb], Oliver Kuß [ctb]
Basic analysis of all penalties taken in the German men's Bundesliga
between the start of its inaugural season and May 2017. The main functions are
suitable printing and plotting functions. Flexible selection of a player is
supported via grep. Missed penalties can easily be included or excluded, depending
on the user's wishes.