Title: Radar Chart from 'Chart.js'
Version: 0.3.1
Description: Create interactive radar charts using the 'Chart.js' 'JavaScript' library and the 'htmlwidgets' package. 'Chart.js' http://www.chartjs.org/ is a lightweight library that supports several types of simple chart using the 'HTML5' canvas element. This package provides an R interface specifically to the radar chart, sometimes called a spider chart, for visualising multivariate data.
Depends: R (≥ 3.1.2)
License: MIT + file LICENSE
LazyData: true
URL: https://github.com/mangothecat/radarchart
BugReports: https://github.com/mangothecat/radarchart/issues
Imports: htmlwidgets, htmltools, grDevices
RoxygenNote: 5.0.1
Suggests: testthat, knitr, rmarkdown, tidyr, shiny
VignetteBuilder: knitr
NeedsCompilation: no
Packaged: 2016-12-20 09:46:17 UTC; douglas
Author: Doug Ashton [aut, cre], Shane Porter [aut], Nick Downie [ctb] (chart.js library), Tanner Linsley [ctb] (chart.js library), William Entriken [ctb] (chart.js library)
Maintainer: Doug Ashton <dashton@mango-solutions.com>
Repository: CRAN
Date/Publication: 2016-12-20 11:47:12

Make a ChartJS Radar Plot

Description

R bindings to the radar plot in the chartJS library

Usage

chartJSRadar(scores, labs, width = NULL, height = NULL, main = NULL,
  maxScale = NULL, scaleStepWidth = NULL, scaleStartValue = 0,
  responsive = TRUE, labelSize = 18, showLegend = TRUE, addDots = TRUE,
  colMatrix = NULL, polyAlpha = 0.2, lineAlpha = 0.8,
  showToolTipLabel = TRUE, ...)

Arguments

scores

Data frame or named list of scores for each axis. If labs is not specified then labels are taken from the first column (or element).

labs

Labels for each axis. If left unspecified labels are taken from the scores data set. If set to NA then labels are left blank.

width

Width of output plot

height

Height of output plot

main

Character: Title to be displayed

maxScale

Max value on each axis

scaleStepWidth

Spacing between rings on radar

scaleStartValue

Value at the centre of the radar

responsive

Logical. whether or not the chart should be responsive and resize when the browser does

labelSize

Numeric. Point label font size in pixels

showLegend

Logical whether to show the legend

addDots

Logical. Whether to show a dot for each point

colMatrix

Numeric matrix of rgb colour values. If NULL defaults are used

polyAlpha

Alpha value for the fill of polygons

lineAlpha

Alpha value for the outlines

showToolTipLabel

Logical. If TRUE then data set labels are shown in the tooltip hover over

...

Extra options passed straight to chart.js. Names must match existing options http://www.chartjs.org/docs/#getting-started-global-chart-configuration

Examples

# Using the data frame interface
chartJSRadar(scores=skills)

# Or using a list interface
labs <- c("Communicator", "Data Wangler", "Programmer", "Technologist",  "Modeller", "Visualizer")

scores <- list("Rich" = c(9, 7, 4, 5, 3, 7),
 "Andy" = c(7, 6, 6, 2, 6, 9),
 "Aimee" = c(6, 5, 8, 4, 7, 6))

# Default settings
chartJSRadar(scores=scores, labs=labs)

# Fix the max score
chartJSRadar(scores=scores, labs=labs, maxScale=10)

# Fix max and spacing
chartJSRadar(scores=scores, labs=labs, maxScale=12, scaleStepWidth = 2)

# Change title and remove legend
chartJSRadar(scores=scores, labs=labs, main = "Data Science Radar", showLegend = FALSE)

# Add pass through settings for extra options
chartJSRadar(scores=scores, labs=labs, maxScale =10, scaleLineWidth=5)

Widget output function for use in Shiny

Description

Widget output function for use in Shiny

Usage

chartJSRadarOutput(outputId, width = "450", height = "300")

Arguments

outputId

output variable to read from

width

Must be valid CSS unit

height

Must be valid CSS unit

Tell htmltools where to output the chart

Description

Tell htmltools where to output the chart

Usage

chartJSRadar_html(id, style, class, width, height, ...)

Arguments

id

The id of the target object

style

css stylings

class

class of the target

width

width of target

height

height of target

...

extra arguments currently unused

Check and prep the colour matrix

Description

Check and prep the colour matrix

Usage

colourMatrix(colMatrix)

Arguments

colMatrix

A 3 x n matrix of integers between 0-255

Value

The checked and prepped matrix of the same size

Examples

radarchart:::colourMatrix(diag(255, nrow=3))

Widget render function for use in Shiny

Description

Widget render function for use in Shiny

Usage

renderChartJSRadar(expr, env = parent.frame(), quoted = FALSE)

Arguments

expr

expression passed to shinyRenderWidget

env

environment in which to evaluate expression

quoted

Logical. Is expression quoted?

Run an example Shiny app

Description

The radarchart package contains a number of demo Shiny apps to illustrate how to use the plots. The code is in inst/shiny-examples/ and running this function will allow quick access to the apps.

Usage

runExampleApp(example)

Arguments

example

the name of the example. Choose from "basic" or "options".

Examples

## Not run: 
runExample("basic")

## End(Not run)

Autoscale the radar plot

Description

Autoscale the radar plot

Usage

setRadarScale(maxScale = NULL, scaleStepWidth = NULL, scaleStartValue = 0)

Arguments

maxScale

Numeric length 1. Desired max limit

scaleStepWidth

Numeric length 1. Spacing between rings

scaleStartValue

Numeric length 1. Value of the centre

Value

A list containing the scale options for chartjs

Examples

## Not run: 
setRadarScale(15, 3)
setRadarScale(15, 5, 2)

## End(Not run)

Skills in a team

Description

A dataset containing the skills vectors for three people

Usage

skills

Format

A data frame with 6 rows and 4 columns

Label

The axis label for chartJSRadar

Aimee

Vector of skills for Aimee

Andy

Vector of skills for Andy

Rich

Vector of skills for Rich

Source

Simulated

Rotated version of skills data

Description

A dataset containing the skills vectors for three people but by row rather than column. This data set is used to show how to rotate the data into a format accepted by chartJSRadar.

Usage

skillsByName

Format

A data frame with 6 rows and 4 columns

Name

Name of the team member

Communicator

Their Communicator score: 0-10

Data Wangler

Their Data Wangler score: 0-10

Modeller

Their Modeller score: 0-10

Programmer

Their Programmer score: 0-10

Technologist

Their Technologist score: 0-10

Visualizer

Their Visualizer score: 0-10

Source

Simulated