An R interface to the Chemistry Development Kit, a Java library
    for chemoinformatics. Given the size of the library itself, this package is
    not expected to change very frequently. To make use of the CDK within R, it is
    suggested that you use the 'rcdk' package. Note that it is possible to directly
    interact with the CDK using 'rJava'. However 'rcdk' exposes functionality in a more
    idiomatic way. The CDK library itself is released as LGPL and the sources can be
    obtained from <https://github.com/cdk/cdk>.

Provides a translation layer between 'R' and 'CDO' operators. Each 
  operator is it's own function with documentation. Nested or piped functions
  will be translated into 'CDO' chains.

Performs 2D Delaunay triangulation, constrained or
    unconstrained, with the help of the C++ library 'CDT'. A function to
    plot the triangulation is provided. The constrained Delaunay
    triangulation has applications in geographic information systems.

An implementation of a stochastic heuristic method for performing multidimensional function optimization. The method is inspired in the Cross-Entropy Method. It does not relies on derivatives, neither imposes particularly strong requirements into the function to be optimized. Additionally, it takes profit from multi-core processing to enable optimization of time-consuming functions.

Provides functions to generate censored samples of type I, II and III, from any random sample generator. It also supplies the option to create left and right censorship. Along with this, the generation of samples with interval censoring is in the  testing phase, with two options of fixed length intervals and random lengths.

The key function 'get_vintage_data()' returns a dataframe and is 
    the window into the Census Bureau API requiring just a dataset name, 
    vintage(year), and vector of variable names for survey estimates/percentages. 
    Other functions assist in searching for available datasets, geographies, 
    group/variable concepts of interest.  Also provided are functions to access 
    and layer (via standard piping) displayable geometries for the US, states, 
    counties, blocks/tracts, roads, landmarks, places, and bodies of water. 
    Joining survey data with many of the geometry functions is built-in to 
    produce choropleth maps.