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ricardo-bion
218 Stars 75 Forks 46 Commits 17 Opened issues

Description

radar charts with ggplot2

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ggradar

ggradar
allows you to build radar charts with ggplot2. This package is based on Paul Williamson’s code, with new aesthetics and compatibility with ggplot2 2.0.

It was inspired by d3radaR, an htmlwidget built by timelyportfolio.

Install
ggradar

devtools::install_github("ricardo-bion/ggradar", 
                          dependencies = TRUE)

Use
ggradar

library(ggradar)
library(dplyr)
library(scales)
library(tibble)

mtcars_radar % as_tibble(rownames = "group") %>% mutate_at(vars(-group), rescale) %>% tail(4) %>% select(1:10)

| group | mpg | cyl | disp | hp | drat | wt | qsec | vs | am | | :------------- | --------: | --: | --------: | --------: | --------: | --------: | --------: | -: | -: | | Ford Pantera L | 0.2297872 | 1.0 | 0.6981791 | 0.7491166 | 0.6728111 | 0.4236768 | 0.0000000 | 0 | 1 | | Ferrari Dino | 0.3957447 | 0.5 | 0.1843352 | 0.4346290 | 0.3963134 | 0.3214012 | 0.1190476 | 0 | 1 | | Maserati Bora | 0.1957447 | 1.0 | 0.5734597 | 1.0000000 | 0.3594470 | 0.5259524 | 0.0119048 | 0 | 1 | | Volvo 142E | 0.4680851 | 0.0 | 0.1244699 | 0.2014134 | 0.6221198 | 0.3239581 | 0.4880952 | 1 | 1 |

ggradar(mtcars_radar)

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Custom fonts

You can also use custom font family in

ggradar
. In the following example, you would like to use Airbnb’s font family named ‘Circular Air’ by first download it, install it in your computer, and then register it to R using
extrafont
package.
# configured to work on a Mac, change directory to Unix or Windows
download.file("https://github.com/ricardo-bion/ggtech/blob/master/Circular%20Air-Light%203.46.45%20PM.ttf", "~/Circular Air-Light 3.46.45 PM.ttf", method = "curl")

extrafont::font_import(pattern = 'Circular', prompt = FALSE)

Following the same procedure as in the previous example, you can then use ‘Circular Air’ font family in

ggradar
by adjusting
font.radar
argument. The following example shows that
ggradar
is also can be used in pipe
%>%
.
mtcars %>% 
  as_tibble(rownames = "group") %>% 
  mutate_at(vars(-group), rescale) %>% 
  tail(4) %>% 
  select(1:10) %>% 
  ggradar(font.radar = "Circular Air")

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