[英]Split legend in ggarrange
我對圖例比例有疑問,因為圖例文本跨越了 plot 的邊界。任何想法,我該如何解決? 拆分還是調整大小?
df <- df %>%
filter(!(is.na(review)))
df <- df %>%
mutate(state = case_when(state == 'California' ~ 'CA',
state == 'Texas' ~ 'TX',
state == 'New York' ~ 'NY',
state == 'Florida' ~ 'FL',
TRUE ~ state))
df <- df %>%
mutate(review = case_when(review == 'Poor' ~ 1,
review == 'Fair' ~ 2,
review == 'Good' ~ 3,
review == 'Great' ~ 4,
review == 'Excellent' ~ 5,),
high_review = ifelse(review >= 4, TRUE, FALSE))
框架代碼:
加州
ca <- df %>%
filter(state == 'CA') %>%
group_by(book) %>%
summarize(books_sold = table(book)) %>%
arrange(-books_sold) %>%
mutate(rank = 1:5)
紐約
ny <- df %>%
filter(state == 'NY') %>%
group_by(book) %>%
summarize(books_sold = table(book)) %>%
arrange(-books_sold) %>%
mutate(rank = 1:5)
佛羅里達
fl <- df %>%
filter(state == 'FL') %>%
group_by(book) %>%
summarize(books_sold = table(book)) %>%
arrange(-books_sold) %>%
mutate(rank = 1:5)
得克薩斯州
tx <- df %>%
filter(state == 'TX') %>%
group_by(book) %>%
summarize(books_sold = table(book)) %>%
arrange(-books_sold) %>%
mutate(rank = 1:5)
這就是我為每個 state 創建數據框的方式。
地塊代碼:
ca_plot <- ggplot(data = ca, aes(x = reorder(rank, -books_sold), y = books_sold, fill = book))+
geom_col()+
geom_text(aes(label = books_sold), vjust = 1.1, size = 3)+
ylab('Number of books sold')+
xlab('Ranking')+
ggtitle('California')+
theme(legend.position = "none")
ny_plot <- ggplot(data = ny, aes(x = reorder(rank, -books_sold), y = books_sold, fill = book))+
geom_col()+
geom_text(aes(label = books_sold), vjust = 1.1, size = 3)+
ylab('')+
xlab('Ranking')+
ggtitle('New York')+
theme(legend.position = "none")
fl_plot <- ggplot(data = fl, aes(x = reorder(rank, -books_sold), y = books_sold, fill = book))+
geom_col()+
geom_text(aes(label = books_sold), vjust = 1.1, size = 3)+
ylab('Number of books sold')+
xlab('Ranking')+
ggtitle('Florida')+
theme(legend.position = "none")
tx_plot <- ggplot(data = tx, aes(x = reorder(rank, -books_sold), y = books_sold, fill = book))+
geom_col()+
geom_text(aes(label = books_sold), vjust = 1.1, size = 3)+
ylab('')+
xlab('Ranking')+
ggtitle('Texas')+
theme(legend.position = "none")
all_plot <- ggplot()
final_plot <- ggarrange(ca_plot, ny_plot, fl_plot, tx_plot, ncol = 2, nrow = 2,
common.legend = TRUE)
final_plot
結果:
正如我在我的評論中所建議的那樣,將guides(fill = guide_legend(nrow =...))
添加到您的一個地塊將是將圖例拆分為多行的一種選擇。
由於您沒有提供示例數據,我創建了自己的示例數據。
library(ggplot2)
library(ggpubr)
dat <- data.frame(
book <- c(
"Lorem ipsum dolor sit amet",
"sem in libero class",
"et posuere vehicula imperdiet dapibus",
"et ipsum id ac",
"Eleifend torquent sed egestas"
),
books_sold = 1:5
)
首先,為了重現您的問題,讓我們創建一些簡單的圖表並使用ggarrange
將它們粘合在一起,正如您所看到的那樣,由於圖例文本較長,圖例在 plot 邊距處被剪掉。
p1 <- p2 <- p3 <- p4 <- ggplot(dat, aes(as.numeric(factor(book)), books_sold, fill = book)) +
geom_col() +
theme(legend.position = "none")
final_plot <- ggarrange(p1, p2, p3, p4,
ncol = 2, nrow = 2,
common.legend = TRUE
)
final_plot
現在,將guides(fill = guide_legend(nrow = 3))
添加到您的一個繪圖中會將圖例分成三行:
p1 <- p1 + guides(fill = guide_legend(nrow = 3))
final_plot <- ggarrange(p1, p2, p3, p4,
ncol = 2, nrow = 2,
common.legend = TRUE
)
final_plot
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