Semantically Rich I/O for the 'NeXML' Format

Provides access to phyloinformatic data in 'NeXML' format. The package should add new functionality to R such as the possibility to manipulate 'NeXML' objects in more various and refined way and compatibility with 'ape' objects.

Search 'Vertnet', a 'Database' of Vertebrate Specimen Records

Retrieve, map and summarize data from the 'VertNet.org' archives (< https://vertnet.org/>). Functions allow searching by many parameters, including 'taxonomic' names, places, and dates. In addition, there is an interface for conducting spatially delimited searches, and another for requesting large 'datasets' via email.

Interface to the Search API for 'PLoS' Journals

A programmatic interface to the 'SOLR' based search API (< http://api.plos.org/>) provided by the Public Library of Science journals to search their articles. Functions are included for searching for articles, retrieving articles, making plots, doing 'faceted' searches, 'highlight' searches, and viewing results of 'highlighted' searches in a browser.

Seamless R and C++ Integration

The 'Rcpp' package provides R functions as well as C++ classes which offer a seamless integration of R and C++. Many R data types and objects can be mapped back and forth to C++ equivalents which facilitates both writing of new code as well as easier integration of third-party libraries. Documentation about 'Rcpp' is provided by several vignettes included in this package, via the 'Rcpp Gallery' site at < https://gallery.rcpp.org>, the paper by Eddelbuettel and Francois (2011, ), the book by Eddelbuettel (2013, ) and the paper by Eddelbuettel and Balamuta (2018, ); see 'citation("Rcpp")' for details.

Create Elegant Data Visualisations Using the Grammar of Graphics

A system for 'declaratively' creating graphics, based on "The Grammar of Graphics". You provide the data, tell 'ggplot2' how to map variables to aesthetics, what graphical primitives to use, and it takes care of the details.

Client for the 'Pangaea' Database

Tools to interact with the 'Pangaea' Database (< https://www.pangaea.de>), including functions for searching for data, fetching 'datasets' by 'dataset' 'ID', and working with the 'Pangaea' 'OAI-PMH' service.

Get Silhouettes of Organisms from PhyloPic

Work with the PhyloPic Web Service (< http://api-docs.phylopic.org/v2/>) to fetch silhouette images of organisms. Includes functions for adding silhouettes to both base R plots and ggplot2 plots.

RDF Library Bindings in R

Provides methods to parse, query and serialize information stored in the Resource Description Framework (RDF). RDF is described at < https://www.w3.org/TR/rdf-primer/>. This package supports RDF by implementing an R interface to the Redland RDF C library, described at < https://librdf.org/docs/api/index.html>. In brief, RDF provides a structured graph consisting of Statements composed of Subject, Predicate, and Object Nodes.

Tools for Validating 'GeoJSON'

Tools for linting 'GeoJSON'. Includes tools for interacting with the online tool < http://geojsonlint.com>, the 'Javascript' library 'geojsonhint' (< https://www.npmjs.com/package/geojsonhint>), and validating against a 'GeoJSON' schema via the 'Javascript' library (< https://www.npmjs.com/package/is-my-json-valid>). Some tools work locally while others require an internet connection.

Access for Dryad Web Services

Interface to the Dryad "Solr" API, their "OAI-PMH" service, and fetch datasets. Dryad (< https://datadryad.org/>) is a curated host of data underlying scientific publications.