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.

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, diagonal-inflated bivariate Poisson, and
             zero-inflated Skellam. It supports both maximum likelihood estimation (MLE, for 
             'static' models only) and Bayesian inference.
             For Bayesian methods, it incorporates several techniques:
             MCMC sampling with Hamiltonian Monte Carlo, variational inference using
             either the Pathfinder algorithm or Automatic Differentiation Variational
             Inference (ADVI), and the Laplace approximation.
             The package compiles all the 'CmdStan' models once during installation
             using the 'instantiate' package.
             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>.

A handy tool to calculate carbon footprints from
    air travel based on three-letter International Air Transport Association (IATA) airport codes or latitude and longitude.
    footprint first calculates the great-circle distance between departure and arrival 
    destinations. It then uses the Department of Environment, Food & Rural Affairs (DEFRA) 
    greenhouse gas conversion factors for business air travel to estimate the carbon footprint.
    These conversion factors consider trip length, flight class (e.g. economy, business), and emissions 
    metric (e.g. carbon dioxide equivalent, methane).