An R implementation of the radar chart from the chart.js javascript library.
You can install from CRAN.
install.packages("radarchart")To install the latest version direct from GitHub you'll need devtools installed. Assuming you have this run:
devtools::install_github("MangoTheCat/radarchart")Or if you want to hack about with the code then clone the repository, change directory into it and run
devtools::install()Note: htmlwidgets packages don't work well with devtools::load_all().
Once installed you can make a radar chart
library(radarchart)
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)
)
chartJSRadar(scores = scores, labs = labs, maxScale = 10)
Static version. Real plots are interactive
Alternatively, you may supply a data frame and chartJSRadar will pickup the labels from the first column of the data. Also we're showing an option to display data set labels in the mouse over.
scores <- data.frame("Label"=c("Communicator", "Data Wangler", "Programmer",
"Technologist", "Modeller", "Visualizer"),
"Rich" = c(9, 7, 4, 5, 3, 7),
"Andy" = c(7, 6, 6, 2, 6, 9),
"Aimee" = c(6, 5, 8, 4, 7, 6))
chartJSRadar(scores, maxScale = 10, showToolTipLabel=TRUE)
Static version. Real plots are interactive
You can now also add a title
chartJSRadar(skills, main = "Data Science Radar")
Static version. Real plots are interactive
As it's based on htmlwidgets it's easy to use radarchart with Shiny. Just use the
chartJSRadarOutput("ID", width = "450", height = "300")function in your ui.R and call chartJSRadar as normal in your server.R. A minimal example can be found in inst/shiny-examples/basic. You can run this with the runExampleApp function
runExampleApp("basic")An "options" app is available to help construct more customised radar charts.
MIT © Mango Solutions, Nick Downie