Implements a simple, likelihood-based estimation of the reproduction number (R0) using a branching process with a Poisson likelihood. This model requires knowledge of the serial interval distribution, and dates of symptom onsets. Infectiousness is determined by weighting R0 by the probability mass function of the serial interval on the corresponding day. It is a simplified version of the model introduced by Cori et al. (2013) <doi:10.1093/aje/kwt133>.

The Early-Warning-Signals Toolbox provides methods for estimating
    statistical changes in time series that can be used for identifying nearby
    critical transitions.

Build regression models using the techniques in Friedman's
    papers "Fast MARS" and "Multivariate Adaptive Regression
    Splines" <doi:10.1214/aos/1176347963>.
    (The term "MARS" is trademarked and thus not used in
    the name of the package.)

Providing easy, portable access to NASA 'EarthData' products
  through the use of bearer tokens. Much of NASA's public data catalogs hosted
  and maintained by its 12 Distributed Active Archive Centers ('DAACs') are
  now made available on the Amazon Web Services 'S3' storage.  However, 
  accessing this data through the standard 'S3' API is restricted to only to 
  compute resources running inside 'us-west-2' Data Center in Portland, Oregon,
  which allows NASA to avoid being charged data egress rates. This package
  provides public access to the data from any networked device by using the 
  'EarthData' login application programming interface (API),
  <https://www.earthdata.nasa.gov/eosdis/science-system-description/eosdis-components/earthdata-login>,
  providing convenient authentication and access to cloud-hosted NASA 'EarthData'
  products. This makes access to a wide range of earth observation data from 
  any location straight forward and compatible with R packages that are 
  widely used with cloud native earth observation data (such as 'terra',
  'sf', etc.)

This is a port of 'Fortran ETERNA 3.4' 
             <http://igets.u-strasbg.fr/soft_and_tool.php> by H.G. Wenzel
             for calculating synthetic Earth tides using the 
             Hartmann and Wenzel (1994) <doi:10.1029/95GL03324> or 
             Kudryavtsev (2004) <doi:10.1007/s00190-003-0361-2> tidal catalogs.