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@andrewheiss
Last active March 15, 2020 21:33
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library(tidyverse)
# Download Fira Sans Condensed from
# https://fonts.google.com/specimen/Fira+Sans+Condensed
high_mean <- 12
high_sd <- 4
flat_mean <- 35
flat_sd <- 12
ggplot(tibble(x = c(0, 70)), aes(x = x)) +
stat_function(geom = "area", fun = dnorm, n = 1000,
args = list(mean = high_mean, sd = high_sd),
fill = "#FF4136", alpha = 0.8) +
stat_function(geom = "area", fun = dnorm, n = 1000,
args = list(mean = flat_mean, sd = flat_sd),
fill = "#0074D9", alpha = 0.8) +
geom_hline(yintercept = dnorm(flat_mean, flat_mean, flat_sd),
linetype = "61", color = "grey75") +
annotate(geom = "text", x = qnorm(0.5, high_mean, high_sd),
y = dnorm(qnorm(0.5, high_mean, high_sd), high_mean, high_sd) / 2,
label = "Without\nprotective\nmeasures", color = "white",
family = "Fira Sans Condensed", fontface = "bold") +
annotate(geom = "text", x = qnorm(0.5, flat_mean, sd = flat_sd),
y = dnorm(qnorm(0.5, flat_mean, sd = flat_sd), flat_mean, sd = flat_sd) / 2,
label = "With protective\nmeasures", color = "white",
family = "Fira Sans Condensed", fontface = "bold") +
annotate(geom = "text", x = 45, y = dnorm(flat_mean, flat_mean, sd = flat_sd),
label = "Healthcare system capacity", vjust = -0.5, hjust = 0,
family = "Fira Sans Condensed", fontface = "bold") +
labs(x = "Time since first case",
y = "# of\ncases",
title = "Flatten the curve!",
subtitle = "Slow down community spread by social distancing",
caption = "Adapted from the CDC and The Economist\nVisit flattenthecurve.com") +
scale_x_continuous(expand = c(0, 0)) +
scale_y_continuous(expand = c(0, 0)) +
theme_minimal(base_family = "Fira Sans Condensed Light") +
theme(panel.grid = element_blank(),
axis.line = element_line(color = "black"),
axis.text = element_blank(),
axis.title = element_text(family = "Fira Sans Condensed", face = "bold"),
axis.title.y = element_text(angle = 0, vjust = 0.5),
plot.title = element_text(family = "Fira Sans Condensed", face = "bold", size = rel(1.7)),
plot.subtitle = element_text(size = rel(1.2), color = "grey50"),
plot.caption = element_text(color = "grey50"))
ggsave("flatten_the_curve.pdf", width = 6, height = 4, units = "in", device = cairo_pdf)
ggsave("flatten_the_curve.png", width = 6, height = 4, units = "in", type = "cairo", dpi = 300)
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