饼图和条形图在同一图上对齐
在看到有关如何在 ggplot2 中从经济学家那里重新创建此图的问题后，我决定自己从头开始尝试（因为没有提供代码或数据），因为我发现这很有趣。
这是我迄今为止设法做的事情：
我能够相对轻松地做到这一点。但是，我正在努力放置饼图。因为 ggplot 使用笛卡尔坐标来制作饼图，所以我不能在同一个图表上有条形图和饼图。所以我发现geom_arc_bar()from ggforce，它确实允许笛卡尔坐标系上的馅饼。但是，问题出在coord_fixed(). 我可以让馅饼对齐，但没有coord_fixed(). 但是，对于coord_fixed()，我无法使图表与经济学人图表的高度相匹配。没有coord_fixed()我可以，但馅饼是椭圆形而不是圆形。见下文：
与coord_fixed()：
没有coord_fixed()：
我尝试过的另一个选择是分别制作一系列饼图，然后将这些图组合在一起。但是，我努力使情节与gridExtra其他替代方案保持一致。我确实结合了油漆。显然这是有效的，但不是程序化的。我需要一个 100% 基于 R 的解决方案。
我在油漆中粘贴来自 R 的单独图像的解决方案：
有人有解决这个问题的方法吗？我认为这是一个有趣的问题，我提供了一个起点。我愿意接受任何建议，也可以随意提出完全不同的方法，因为我承认我的不是最好的。谢谢！
代码：
# packages
library(data.table)
library(dplyr)
library(forcats)
library(ggplot2)
library(ggforce)
library(ggnewscale)
library(ggtext)
library(showtext)
library(stringr)
# data
global <- fread("Sector,ROE,Share,Status
Technology,14.2,10,Local
Technology,19,90,Multinational
Other consumer,16.5,77,Multinational
Other consumer,20.5,23,Local
Industrial,13,70,Multinational
Industrial,18,30,Local
Cyclical consumer,12,77,Multinational
Cyclical consumer,21,23,Local
Utilities,6,88,Local
Utilities,11,12,Multinational
All sectors,10,50,Local
All sectors,10.2,50,Multinational
Financial,6,27,Multinational
Financial,10.5,73,Local
Diversified,4.9,21,Local
Diversified,5,79,Multinational
Basic materials,4,82,Multinational
Basic materials,9,18,Local
Media & communications,3,76,Multinational
Media & communications,14,24,Local
Energy,-1,40,Local
Energy,1,60,Multinational
")
equity <- global %>%
group_by(Sector) %>%
mutate(xend = ifelse(min(ROE) > 0, 0, min(ROE)))
equity$Sector <- factor(equity$Sector, levels= rev(c("Technology", "Other consumer",
"Industrial", "Cyclical consumer",
"Utilities", "All sectors", "Financial",
"Diversified", "Basic materials",
"Media & communications", "Energy")))
equity$Status <- factor(equity$Status, levels = c("Multinational", "Local"))
# fonts
font_add_google("Montserrat", "Montserrat")
font_add_google("Roboto", "Roboto")
# scaling text for high res image
img_scale <- 5.5
# graph
showtext_auto() # for montserrat font to show
economist <- ggplot(equity)+
geom_vline(aes(xintercept = -2.5, color = "+-"), show.legend = FALSE)+
geom_vline(aes(xintercept = 2.5, color = "+-"), show.legend = FALSE)+
geom_segment(aes(x = ROE, xend = xend, y = Sector, yend = Sector, color = "line"),
show.legend = FALSE, size = 2)+
geom_tile(aes(x = ROE, y = Sector, width = 1, height = 0.5, fill = Status),
size = 0.5)+
geom_vline(aes(xintercept = 0, color = "x-axis"), show.legend = FALSE)+
scale_fill_manual("", values = c("Local" = "#ea5f47", "Multinational" = "#0a5268"))+
scale_color_manual(values = c("x-axis" = "red", "+-" = "#cddee6", "line" = "#a8adb3"))+
scale_x_continuous(position = "top", limits = c(-5, 25),
breaks = c(-5, -2.5, 0, 2.5, 5,10,15,20,25),
labels = c(5, "-", 0, "+", 5,10,15,20,25),
minor_breaks = c(-2.5, 2.5)
)+
scale_y_discrete(labels = function(x) str_replace_all(x, "& c" , "&nc"))+
#width = 40))+
labs(x = "", y = "", caption = c("Sources: Bloomberg;",
"The Economist",
"<span style='font-size:80px;
color:#292929;'><sup>*</sup></span>Top 500 global companies"))+
ggtitle("The price of being global",
subtitle = "Return on equity<span style='font-size:80px;color:#292929;'>*</span>, latest 12 months, %")+
theme(legend.position = "top",
legend.direction = "vertical",
legend.justification = -1.25,
legend.key.size = unit(0.18, "cm"),
legend.key.height = unit(0.1, "cm"),
legend.background = element_rect("#cddee6"),
legend.text = element_text("Montserrat", size = 9 * img_scale),
plot.background = element_rect("#cddee6"),
plot.margin = margin(t = 10, r = 10, b = 20, l = 10),
panel.background = element_rect("#cddee6"),
panel.grid.major.y = element_blank(),
panel.grid.minor.y = element_blank(),
panel.grid.minor.x = element_blank(),
axis.ticks = element_blank(),
axis.text = element_text(family = "Montserrat", size = 9 * img_scale,
colour = "black"),
axis.text.y = element_text(hjust = 0, lineheight = 0.15,
face = c(rep("plain",5), "bold.italic", rep("plain",5))
),
#axis.text.x = element_text(family = "Montserrat", size = 9*img_scale,)
plot.title = element_text(family = "Montserrat", size = 12 * img_scale,
face = "bold",
hjust = -34.12),
text = element_text(family = "Montserrat"),
plot.subtitle = element_markdown(family = "Montserrat", size = 9 * img_scale,
hjust = 7.5),
plot.caption = element_markdown(size = 9*img_scale,
face = c("plain", "italic", "plain"),
hjust = c(-1.35, -1.85, -2.05),
vjust = c(0,0.75,0)))
# only way to get google fonts on plot (R device does not show them)
png("bar.png", height = 480*8, width = 250*8, res = 72*8) # increased resolution (dpi)
economist
dev.off()
# piechart
pies <- equity %>%
mutate(Sector = fct_rev(Sector)) %>%
ggplot(aes(x = "", y = Share, fill = Status, width = 0.15)) +
geom_bar(stat = "identity", position = position_fill(), show.legend = FALSE, size = 0.1) +
# geom_text(aes(label = Cnt), position = position_fill(vjust = 0.5)) +
coord_polar(theta = "y", direction = -1) +
facet_wrap(~ Sector, dir = "v", ncol = 1) +
scale_fill_manual("", values = c("Local" = "#93b7c7", "Multinational" = "#08526b"))+
#theme_void()+
theme(panel.spacing = unit(-0.35, "lines"),
plot.background = element_rect("#cddee6"),
panel.background = element_rect("transparent"),
strip.text = element_blank(),
axis.title.x = element_blank(),
axis.title.y = element_blank(),
legend.position='none',
axis.ticks = element_blank(),
axis.text = element_blank(),
panel.grid.major = element_blank(),
panel.grid.minor = element_blank())
# guides(fill=guide_legend(nrow=2, byrow=TRUE))
png("pie_chart.png", height = 350*8, width = 51*8, res = 72*8)
pies
dev.off()
# geom_bar_arc (ggforce) with coord_fixed - cannot match height but pies are circular
eco_circle_pies <- ggplot(equity)+
geom_vline(aes(xintercept = -2.5, color = "+-"), show.legend = FALSE)+
geom_vline(aes(xintercept = 2.5, color = "+-"), show.legend = FALSE)+
geom_segment(aes(x = ROE, xend = xend, y = Sector, yend = Sector, color = "line"),
show.legend = FALSE, size = 1)+
scale_fill_manual("", values = c("Local" = "#ea5f47", "Multinational" = "#0a5268"))+
geom_tile(aes(x = ROE, y = Sector, width = 1, height = 0.5, fill = Status),
size = 0.5, show.legend = TRUE)+
geom_vline(aes(xintercept = 0, color = "x-axis"), show.legend = FALSE)+
new_scale_fill()+
geom_arc_bar(aes(x0 = 27, y0 = as.numeric(equity$Sector), r0 = 0, r = 0.45,
amount = Share,
fill = Status),
stat = 'pie',
color = "transparent",
show.legend = FALSE)+
coord_fixed()+
scale_fill_manual("", values = c("Local" = "#93b7c7", "Multinational" = "#08526b"))+
scale_color_manual(values = c("x-axis" = "red", "+-" = "#cddee6", "line" = "#a8adb3"))+
scale_x_continuous(position = "top", limits = c(-5, 30),
breaks = c(-5, -2.5, 0, 2.5, 5,10,15,20,25),
labels = c(5, "-", 0, "+", 5,10,15,20,25),
minor_breaks = c(-2.5, 2.5)
)+
scale_y_discrete(labels = function(x) str_replace_all(x, "& c" , "&nc"))+
# below is to get * superscript
labs(x = "", y = "", caption = c("Sources: Bloomberg;",
"<span style='font-style:italic;font-color:#292929'>The Economist</span>",
"<span style='font-size:80px;
color:#292929;'><sup>*</sup></span>Top 500 global companies"))+ # this is to get
ggtitle("The price of being global",
subtitle = "Return on equity<span style='font-size:80px;color:#292929;'>*</span>, latest 12 months, %")+
guides(color = FALSE)+
theme(legend.position = "top",
legend.direction = "vertical",
# legend.justification = -0.9,
legend.key.size = unit(0.18, "cm"),
legend.key.height = unit(0.1, "cm"),
legend.background = element_rect("#cddee6"),
legend.text = element_text("Montserrat", size = 9 * img_scale),
plot.background = element_rect("#cddee6"),
# plot.margin = margin(t = -80, r = 10, b = -20, l = 10),
panel.background = element_rect("#cddee6"),
panel.grid.major.y = element_blank(),
panel.grid.minor.y = element_blank(),
panel.grid.minor.x = element_blank(),
axis.ticks = element_blank(),
axis.text = element_text(family = "Montserrat", size = 9 * img_scale,
colour = "black"),
axis.text.y = element_text(hjust = 0, lineheight = 0.15),
#axis.text.x = element_text(family = "Montserrat", size = 9*img_scale,)
plot.title = element_text(family = "Montserrat", size = 12 * img_scale,
hjust = -2.12),
plot.subtitle = element_markdown(family = "Montserrat", size = 9 * img_scale,
hjust = -5.75),
plot.caption = element_markdown(size = 9*img_scale,
face = c("plain", "italic", "plain"),
#hjust = c(-.9, -1.22, -1.95),
#vjust = c(0,0.75,0)))
))
png("eco_circle_pies.png", height = 220*8, width = 420*8, res = 72*8)
eco_circle_pies
dev.off()
# geom_bar_arc (ggforce) without coord_fixed - matches height, but pies are oval
eco_oval_pie <- ggplot(equity)+
geom_vline(aes(xintercept = -2.5, color = "+-"), show.legend = FALSE)+
geom_vline(aes(xintercept = 2.5, color = "+-"), show.legend = FALSE)+
geom_segment(aes(x = ROE, xend = xend, y = Sector, yend = Sector, color = "line"),
show.legend = FALSE, size = 1)+
scale_fill_manual("", values = c("Local" = "#ea5f47", "Multinational" = "#0a5268"))+
geom_tile(aes(x = ROE, y = Sector, width = 1, height = 0.5, fill = Status),
size = 0.5, show.legend = TRUE)+
geom_vline(aes(xintercept = 0, color = "x-axis"), show.legend = FALSE)+
new_scale_fill()+
geom_arc_bar(aes(x0 = 27, y0 = as.numeric(equity$Sector), r0 = 0, r = 0.45,
amount = Share,
fill = Status),
stat = 'pie',
color = "transparent",
show.legend = FALSE)+
# coord_fixed()+
scale_fill_manual("", values = c("Local" = "#93b7c7", "Multinational" = "#08526b"))+
scale_color_manual(values = c("x-axis" = "red", "+-" = "#cddee6", "line" = "#a8adb3"))+
scale_x_continuous(position = "top", limits = c(-5, 30),
breaks = c(-5, -2.5, 0, 2.5, 5,10,15,20,25),
labels = c(5, "-", 0, "+", 5,10,15,20,25),
minor_breaks = c(-2.5, 2.5)
)+
scale_y_discrete(labels = function(x) str_replace_all(x, "& c" , "&nc"))+
#width = 40))+
labs(x = "", y = "", caption = c("Sources: Bloomberg;",
"<span style='font-style:italic;font-color:#292929'>The Economist</span>",
"<span style='font-size:80px;
color:#292929;'><sup>*</sup></span>Top 500 global companies"))+
ggtitle("The price of being global",
subtitle = "Return on equity<span style='font-size:80px;color:#292929;'>*</span>, latest 12 months, %")+
guides(color = FALSE)+
theme(legend.position = "top",
legend.direction = "vertical",
legend.justification = -1.1,
legend.key.size = unit(0.18, "cm"),
legend.key.height = unit(0.1, "cm"),
legend.background = element_rect("#cddee6"),
legend.text = element_text("Montserrat", size = 9 * img_scale),
plot.background = element_rect("#cddee6"),
# plot.margin = margin(t = -80, r = 10, b = -20, l = 10),
panel.background = element_rect("#cddee6"),
panel.grid.major.y = element_blank(),
panel.grid.minor.y = element_blank(),
panel.grid.minor.x = element_blank(),
axis.ticks = element_blank(),
axis.text = element_text(family = "Montserrat", size = 9 * img_scale,
colour = "black"),
axis.text.y = element_text(hjust = 0, lineheight = 0.15),
text = element_text(family = "Montserrat"),
plot.title = element_text(family = "Montserrat", size = 12 * img_scale,
face = "bold",
hjust = -7.05),
plot.subtitle = element_markdown(family = "Montserrat", size = 9 * img_scale,
hjust = 53.75),
plot.caption = element_markdown(size = 9*img_scale,
face = c("plain", "italic", "plain"),
hjust = c(-1.15, -1.58, -1.95),
vjust = c(0.5,1.15,0.5)))
png("eco_oval_pies.png", height = 480*8, width = 250*8, res = 72*8)
eco_oval_pie
dev.off()
回答
确实是一个有趣的问题。在我看来，获得所需结果的最简单方法是创建两个单独的图并使用美妙的patchwork包将它们粘合在一起：
注意：为了关注主要问题并使代码更简洁，我放弃了所有或大部分的主题调整、ggtext样式、自定义字体……。相反，我依靠ggthemes::theme_economist接近经济学家的样子。
# packages
library(data.table)
library(dplyr)
library(stringr)
library(forcats)
library(ggplot2)
library(patchwork)
library(ggthemes)
bars <-ggplot(equity)+
geom_vline(aes(xintercept = -2.5, color = "+-"), show.legend = FALSE)+
geom_vline(aes(xintercept = 2.5, color = "+-"), show.legend = FALSE)+
geom_segment(aes(x = ROE, xend = xend, y = Sector, yend = Sector, color = "line"),
show.legend = FALSE, size = 2)+
geom_tile(aes(x = ROE, y = Sector, width = 1, height = 0.5, fill = Status),
size = 0.5)+
geom_vline(aes(xintercept = 0, color = "x-axis"), show.legend = FALSE)+
scale_fill_manual("", values = c("Local" = "#ea5f47", "Multinational" = "#0a5268"))+
scale_color_manual(values = c("x-axis" = "red", "+-" = "#cddee6", "line" = "#a8adb3"))+
scale_x_continuous(position = "top", limits = c(-5, 25),
breaks = c(-5, -2.5, 0, 2.5, 5,10,15,20,25),
labels = c(5, "-", 0, "+", 5,10,15,20,25),
minor_breaks = c(-2.5, 2.5)
)+
scale_y_discrete(labels = function(x) str_replace_all(x, "& c" , "&nc"))+
labs(x = "", y = "") +
ggthemes::theme_economist() +
theme(legend.position = "top", legend.justification = "left")
pies <- equity %>%
mutate(Sector = fct_rev(Sector)) %>%
ggplot(aes(x = "", y = Share, fill = Status, width = 0.15)) +
geom_bar(stat = "identity", position = position_fill(), show.legend = FALSE, size = 0.1) +
coord_polar(theta = "y", direction = -1) +
facet_wrap(~ Sector, dir = "v", ncol = 1) +
scale_fill_manual("", values = c("Local" = "#93b7c7", "Multinational" = "#08526b")) +
labs(x = NULL, y = NULL) +
ggthemes::theme_economist() +
theme(strip.text = element_blank(), panel.spacing.y = unit(0, "pt"),
axis.text = element_blank(), , axis.ticks = element_blank(), axis.line = element_blank(),
panel.grid.major = element_blank())
bars + pies +
plot_layout(widths= c(5, 1)) +
plot_annotation(caption = c("Sources: Bloomberg;",
"The Economist", "Top 500 global companies"),
title = "The price of being global",
subtitle = "Return on equity, latest 12 months, %",
theme = theme_economist())