我有以下情节,我使用 ggplot2 和拼凑而成的面板图。每一行都对不同的目标数据集进行预测,所以我认为为每一行设置一个标题可能会有所帮助,我只是用空创建的标题ggplot + annotate()
如下:
示例代码
library(ggplot2)
library(patchwork)
p1 <- ggplot(mtcars) +
geom_point(aes(mpg, disp)) +
ggtitle("Plot 1")
p2 <- ggplot(mtcars) +
geom_boxplot(aes(gear, disp, group = gear)) +
ggtitle("Plot 2")
p3 <- ggplot(mtcars) +
geom_point(aes(hp, wt, colour = mpg)) +
ggtitle("Plot 3")
p4 <- ggplot(mtcars) +
geom_bar(aes(gear)) +
facet_wrap(~cyl) +
ggtitle("Plot 4")
ggplot() +
annotate(geom = "text", x = 1, y = 1, label = "Predictions on Dataset 1",size=8) +
theme_void() -> title1
ggplot() +
annotate(geom = "text", x = 1, y = 1, label = "Predictions on Dataset 2",size=8) +
theme_void() -> title2
title1 /
(p1 | p2) /
title2 /
(p3 | p4) +
plot_annotation(
tag_levels = list(c("","A.1) Model Name 1", "B.1) Model Name 2", "","A.2) Model Name 1", "B.2) Model Name 2")),
theme = theme(plot.title = element_text(size = 24))
) &
theme(
)
问题
如何减少title1
andtitle2
和其他地块之间的空间?