CRAN packages

Vector Helpers. Defines new notions of prototype and size that are used to provide tools for consistent and well-founded type-coercion and size-recycling, and are in turn connected to ideas of type- and size-stability useful for analysing function interfaces.

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.

Manage the Life Cycle of your Package Functions. Manage the life cycle of your exported functions with shared conventions, documentation badges, and user-friendly deprecation warnings.

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. Documentati

Interpreted String Literals. An implementation of interpreted string literals, inspired by Python's Literal String Interpolation <https://www.python.org/dev/peps/pep-0498/> and Docstrings <https://www.python.org/dev/peps/pep-0257/> and Julia's Triple-Quoted String Literals <https://docs.julialang.org/en/v1.3/manual/strings/#Tri

Encapsulated Classes with Reference Semantics. Creates classes with reference semantics, similar to R's built-in reference classes. Compared to reference classes, R6 classes are simpler and lighter-weight, and they are not built on S4 classes so they do not require the methods package. These classes allow public and private members, and they sup

Run Code 'With' Temporarily Modified Global State. A set of functions to run code 'with' safely and temporarily modified global state. Many of these functions were originally a part of the 'devtools' package, this provides a simple package with limited dependencies to provide access to these functions.

A Forward-Pipe Operator for R. Provides a mechanism for chaining commands with a new forward-pipe operator, %>%. This operator will forward a value, or the result of an expression, into the next function call/expression. There is flexible support for the type of right-hand side expressions. For more information, see package vigne

A Grammar of Data Manipulation. A fast, consistent tool for working with data frame like objects, both in memory and out of memory.

A Simple and Robust JSON Parser and Generator for R. A reasonably fast JSON parser and generator, optimized for statistical data and the web. Offers simple, flexible tools for working with JSON in R, and is particularly powerful for building pipelines and interacting with a web API. The implementation is based on the mapping described in the vignette

Simple Data Frames. Provides a 'tbl_df' class (the 'tibble') with stricter checking and better formatting than the traditional data frame.

A C++11 Interface for R's C Interface. Provides a header only, C++11 interface to R's C interface. Compared to other approaches 'cpp11' strives to be safe against long jumps from the C API as well as C++ exceptions, conform to normal R function semantics and supports interaction with 'ALTREP' vectors.

Dynamic Documents for R. Convert R Markdown documents into a variety of formats.

Coloured Formatting for Columns. Provides 'pillar' and 'colonnade' generics designed for formatting columns of data using the full range of colours provided by modern terminals.

Scale Functions for Visualization. Graphical scales map data to aesthetics, and provide methods for automatically determining breaks and labels for axes and legends.

Custom 'Bootstrap' 'Sass' Themes for 'shiny' and 'rmarkdown'. Simplifies custom 'CSS' styling of both 'shiny' and 'rmarkdown' via 'Bootstrap' 'Sass'. Supports 'Bootstrap' 3, 4 and 5 as well as their various 'Bootswatch' themes. An interactive widget is also provided for previewing themes in real time.

Supporting Functions for Packages Maintained by 'Yihui Xie'. Miscellaneous functions commonly used in other packages maintained by 'Yihui Xie'.