Visualizations to explain the results of a topological
  data analysis. The goal of topological data analysis is to identify
  persistent topological structures, such as loops (topological circles)
  and voids (topological spheres), in data sets. The output of an
  analysis using the 'TDA' package is a Rips diagram (named after the
  mathematician Eliyahu Rips). The goal of 'RPointCloud' is to fill in
  these holes in the data by providing tools to visualize the features
  that help explain the structures found in the Rips diagram. See McGee
  and colleagues (2024) <doi:10.1101/2024.05.16.593927>.

A polyhedra database scraped from various sources as R6 objects and 'rgl' visualizing capabilities.

PDF tools based on the Poppler PDF rendering library.
  See <http://poppler.freedesktop.org/> for more information on Poppler.

Collection of tools to calculate portfolio performance metrics. Portfolio performance is a key measure for investors. These metrics are important to analyse how effectively their money has been invested. This package uses portfolio theories to give investor tools to evaluate their portfolio performance. For more information see,  Markowitz, H.M. (1952), <doi:10.2307/2975974>. Analysis of Investments & Management of Portfolios [2012, ISBN:978-8131518748].

Provides an interface between R and 'PostGIS'-enabled
    'PostgreSQL' databases to transparently transfer spatial
    data. Both vector (points, lines, polygons) and raster data are
    supported in read and write modes. Also provides convenience
    functions to execute common procedures in 'PostgreSQL/PostGIS'.

Fully DBI-compliant C++-backed interface to PostgreSQL
    <https://www.postgresql.org/>, an open-source relational database.

Database interface and 'PostgreSQL' driver for 'R'.
 This package provides a Database Interface 'DBI' compliant 
 driver for 'R' to access 'PostgreSQL' database systems.  
 In order to build and install this package from source, 'PostgreSQL' 
 itself must be present your system to provide 'PostgreSQL' functionality 
 via its libraries and header files. These files are provided as
 'postgresql-devel' package under some Linux distributions.
 On 'macOS' and 'Microsoft Windows' system the attached 'libpq' library source will be used.