Summarise a Distribution Through Coloured Intervals

Implements the functionality of the 'fanplot' package as 'geoms' for 'ggplot2'. Designed for summarising MCMC samples from a posterior distribution, where a visualisation is desired for several values of a continuous covariate. Increasing posterior intervals of the sampled quantity are mapped to a continuous colour scale.


ggfan

Jason Hilton 14 November, 2017

Build Status

Summarise a distribution through coloured intervals

This package is a ggplot-based implementation of some of the functionality of the fanplot package by Guy Abel. Fanplot provides methods to visualise probability distributions by representing intervals of the distribution function with colours. Plotting samples from posterior distributions obtained through MCMC is a particular aim. A ggplot-based implementation is useful as it allows leverage of the power of ggplot2 features allowing, for example, facetting and easy theming.

Installation

The package has recently been submitted to CRAN. Installation directly from CRAN will be possible if and when the package is accepted: install.packages("ggfan") Otherwise, the package can be installed directly from github using the devtools package: devtools::install_github("jasonhilton/ggfan").

Quick Start

The provided fake_df data gives and example of the type of data you might want to plot with ggfan: it consists of 1000 samples of an outcome variable of interest at each value of a covariate x. We can plot this simply using standard ggplot2 syntax and geom_fan. Convenient ggplot features such as themes, colour scales and facetting can also be used.

ggplot(fake_df, aes(x=x, y=y)) + geom_fan() + theme_minimal() + scale_fill_distiller(palette="Spectral")

Further Information

A full description of the functionality of ggfan is provided in the vignette, provided here.

A brief example of using ggfan to plot stan output is given in a second vignette here

News

ggfan 0.1.1

  • Make rstan a strong dependency to avoid warnings when running vignette or on load of dataset if this package is not installed on test platform.

ggfan 0.1.0

Initial submission to CRAN

Reference manual

It appears you don't have a PDF plugin for this browser. You can click here to download the reference manual.

install.packages("ggfan")

0.1.1 by Jason Hilton, 3 months ago


https://github.com/jasonhilton/ggfan


Report a bug at https://github.com/jasonhilton/ggfan/issues


Browse source code at https://github.com/cran/ggfan


Authors: Jason Hilton [aut, cre]


Documentation:   PDF Manual  


GPL-2 | file LICENSE license


Imports ggplot2, colorspace, dplyr, stats, grid, rstan

Suggests testthat, knitr, rmarkdown, tidyr, magrittr, tibble


See at CRAN