Create Waffle Chart Visualizations
Square pie charts (a.k.a. waffle charts) can be used to communicate parts of a whole for categorical quantities. To emulate the percentage view of a pie chart, a 10x10 grid should be used with each square representing 1% of the total. Modern uses of waffle charts do not necessarily adhere to this rule and can be created with a grid of any rectangular shape. Best practices suggest keeping the number of categories small, just as should be done when creating pie charts. Tools are provided to create waffle charts as well as stitch them together, and to use glyphs for making isotype pictograms.
It uses ggplot2 and returns a ggplot2 object.
The following functions are implemented:
-
waffle: Make waffle (square pie) charts -
draw_key_pictogram: Legend builder for pictograms -
fa_grep: Search Font Awesome glyph names for a pattern -
fa_list: List all Font Awesome glyphs -
fa5_brand: Font Awesome 5 Brand -
fa5_solid: Font Awesome 5 Solid -
geom_pictogram: Pictogram Geom -
geom_waffle: Waffle (Square pie chart) Geom -
install_fa_fonts: Install Font Awesome 5 Fonts -
iron: Veritical, left-aligned layout for waffle plots -
scale_label_pictogram: Used with geom_pictogram() to map Font Awesome fonts to labels -
theme_enhance_waffle: Waffle chart theme cruft remover that can be used with any other theme
install.packages("waffle") # NOTE: CRAN version is 0.7.0
# or
remotes::install_github("hrbrmstr/waffle")NOTE: To use the ‘remotes’ install options you will need to have the {remotes} package installed.
library(waffle)
library(magrittr)
library(hrbrthemes)
library(ggplot2)
library(dplyr)
library(waffle)
# current verison
packageVersion("waffle")
## [1] '1.0.2'data.frame(
parts = factor(rep(month.abb[1:3], 3), levels=month.abb[1:3]),
vals = c(10, 20, 30, 6, 14, 40, 30, 20, 10),
col = rep(c("navy", "black", "maroon"), 3),
fct = c(
rep("Thing 1", 3),
rep("Thing 2", 3),
rep("Thing 3", 3)
)
) -> xdf
xdf %>%
count(parts, wt = vals) %>%
ggplot(
aes(fill = parts, values = n)
) +
geom_waffle(
n_rows = 20,
size = 0.33,
colour = "white",
flip = TRUE
) +
scale_fill_manual(
name = NULL,
values = c("#a40000", "#c68958", "#ae6056"),
labels = c("Fruit", "Sammich", "Pizza")
) +
coord_equal() +
theme_ipsum_rc(grid="") +
theme_enhance_waffle()
xdf %>%
count(parts, wt = vals) %>%
ggplot(
aes(label = parts, values = n)
) +
geom_pictogram(
n_rows = 10,
aes(colour = parts),
flip = TRUE,
make_proportional = TRUE
) +
scale_color_manual(
name = NULL,
values = c("#a40000", "#c68958", "#ae6056"),
labels = c("Fruit", "Sammich", "Pizza")
) +
scale_label_pictogram(
name = NULL,
values = c("apple-alt", "bread-slice", "pizza-slice"),
labels = c("Fruit", "Sammich", "Pizza")
) +
coord_equal() +
theme_ipsum_rc(grid="") +
theme_enhance_waffle() +
theme(
legend.key.height = unit(2.25, "line"),
legend.text = element_text(size = 10, hjust = 0, vjust = 0.75)
) 
xdf %>%
count(parts, wt = vals) %>%
ggplot(
aes(label = parts, values = n)
) +
geom_pictogram(
n_rows = 20,
size = 6,
aes(colour = parts),
flip = TRUE,
family = "FontAwesome5Brands-Regular"
) +
scale_color_manual(
name = NULL,
values = c("#073f9c", "black", "#f34323"),
labels = c("BitBucket", "GitHub", "Other")
) +
scale_label_pictogram(
name = NULL,
values = c("bitbucket", "github", "git-alt"),
labels = c("BitBucket", "GitHub", "Other")
) +
coord_equal() +
theme_ipsum_rc(grid="") +
theme_enhance_waffle() +
theme(
legend.text = element_text(hjust = 0, vjust = 1)
)
library(hrbrthemes)
library(waffle)
library(tidyverse)
tibble(
parts = factor(rep(month.abb[1:3], 3), levels=month.abb[1:3]),
values = c(10, 20, 30, 6, 14, 40, 30, 20, 10),
fct = c(rep("Thing 1", 3), rep("Thing 2", 3), rep("Thing 3", 3))
) -> xdf
ggplot(
data = xdf,
aes(fill=parts, values=values)
) +
geom_waffle(
color = "white",
size = 1.125,
n_rows = 6
) +
facet_wrap(~fct, ncol=1) +
scale_x_discrete(
expand = c(0,0,0,0)
) +
scale_y_discrete(
expand = c(0,0,0,0)
) +
ggthemes::scale_fill_tableau(name=NULL) +
coord_equal() +
labs(
title = "Faceted Waffle Geoms"
) +
theme_ipsum_rc(grid="") +
theme_enhance_waffle()
library(dplyr)
library(waffle)
storms %>%
filter(year >= 2010) %>%
count(year, status) -> storms_df
ggplot(
data = storms_df,
aes(fill = status, values = n)
) +
geom_waffle(
color = "white",
size = .25,
n_rows = 10,
flip = TRUE
) +
facet_wrap(
~year,
nrow = 1,
strip.position = "bottom"
) +
scale_x_discrete() +
scale_y_continuous(
labels = function(x) x * 10, # make this multiplier the same as n_rows
expand = c(0,0)
) +
ggthemes::scale_fill_tableau(name=NULL) +
coord_equal() +
labs(
x = "Year", y = "Count",
title = "Faceted Waffle Bar Chart",
subtitle = "{dplyr} storms data"
) +
theme_minimal(
base_family = "Roboto Condensed"
) +
theme(
panel.grid = element_blank(),
axis.ticks.y = element_line()
) +
guides(
fill = guide_legend(reverse = TRUE)
)
parts <- c(80, 30, 20, 10)
waffle(parts, rows = 8)
parts <- data.frame(
names = LETTERS[1:4],
vals = c(80, 30, 20, 10)
)
waffle(parts, rows = 8)
c(
`Un-breached\nUS Population` = (318 - 11 - 79),
`Premera` = 11,
`Anthem` = 79
) -> partswaffle(
parts = parts,
rows = 8,
size = 1,
colors = c("#969696", "#1879bf", "#009bda"),
legend_pos = "bottom"
)Health records breaches as fraction of US Population
One square == 1m ppl
waffle(
parts = parts / 10,
rows = 3,
colors = c("#969696", "#1879bf", "#009bda")
)Health records breaches as fraction of US Population
(One square == 10m ppl)
library(extrafont)
waffle(
parts = parts / 10,
rows = 3,
colors = c("#969696", "#1879bf", "#009bda"),
use_glyph = "medkit",
size = 8
) +
expand_limits(
y = c(0, 4)
)
Via: https://www.nytimes.com/2008/07/20/business/20debt.html
c(
`Mortgage\n($84,911)` = 84911,
`Auto and\ntuition loans\n($14,414)` = 14414,
`Home equity loans\n($10,062)` = 10062,
`Credit Cards\n($8,565)` = 8565
) -> savingswaffle(
parts = savings / 392,
rows = 7,
size = 0.5,
legend_pos = "bottom",
colors = c("#c7d4b6", "#a3aabd", "#a0d0de", "#97b5cf")
)Average Household Savings Each Year
(1 square == $392)
Similar to https://eagereyes.org/techniques/square-pie-charts
professional <- c(`Male` = 44, `Female (56%)` = 56)waffle(
parts = professional,
rows = 10,
size = 0.5,
colors = c("#af9139", "#544616")
)With:
iron(
waffle(
parts = c(thing1 = 0, thing2 = 100),
rows = 5
),
waffle(
parts = c(thing1 = 25, thing2 = 75),
rows = 5
)
)
Without (you can disable this via keep parameter now):
iron(
waffle(
parts = c(thing1 = 0, thing2 = 100),
rows = 5,
keep = FALSE
),
waffle(
parts = c(thing1 = 25, thing2 = 75),
rows = 5,
keep = FALSE
)
)
Professional Workforce Makeup
Iron example (left-align & padding for multiple plots)
pain.adult.1997 <- c(`YOY (406)` = 406, `Adult (24)` = 24)
waffle(
parts = pain.adult.1997 / 2,
rows = 7,
size = 0.5,
colors = c("#c7d4b6", "#a3aabd"),
title = "Paine Run Brook Trout Abundance (1997)",
xlab = "1 square = 2 fish", pad = 3
) -> A
pine.adult.1997 <- c(`YOY (221)` = 221, `Adult (143)` = 143)
waffle(
parts = pine.adult.1997 / 2,
rows = 7,
size = 0.5,
colors = c("#c7d4b6", "#a3aabd"),
title = "Piney River Brook Trout Abundance (1997)",
xlab = "1 square = 2 fish", pad = 8
) -> B
stan.adult.1997 <- c(`YOY (270)` = 270, `Adult (197)` = 197)
waffle(
parts = stan.adult.1997 / 2,
rows = 7,
size = 0.5,
colors = c("#c7d4b6", "#a3aabd"),
title = "Staunton River Trout Abundance (1997)",
xlab = "1 square = 2 fish"
) -> C
iron(A, B, C)
cloc::cloc_pkg_md()| Lang | # Files | (%) | LoC | (%) | Blank lines | (%) | # Lines | (%) |
|---|---|---|---|---|---|---|---|---|
| R | 14 | 0.44 | 624 | 0.35 | 218 | 0.36 | 439 | 0.38 |
| Rmd | 2 | 0.06 | 255 | 0.15 | 88 | 0.14 | 139 | 0.12 |
| SUM | 16 | 0.50 | 879 | 0.50 | 306 | 0.50 | 578 | 0.50 |
{cloc} 📦 metrics for waffle
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