我正在尝试更改使用
facet_wrap()
绘制的两个图的标题,其中一个具有大于或等于符号 (>=
)。我可以获取图表来解析标题,但是一旦我将 >= 符号放在括号中,标题就无法解析。当 >= 符号位于括号中时,如何获取要解析的标题?
library(tidyverse)
mtcars %>%
mutate(size = ifelse(hp >= 100, 'greater', 'lesser'),
size = factor(size, levels = c("greater", "lesser"),
labels = c("Horsepower >= 100", "Horsepower < 100"))) %>%
ggplot(aes(x = mpg, y = wt)) +
geom_point() +
theme_bw() +
facet_wrap(~size, labeller = label_parsed)
mtcars %>%
mutate(size = ifelse(hp >= 100, 'greater', 'lesser'),
size = factor(size, levels = c("greater", "lesser"),
labels = c("Horsepower (>= 100)", "Horsepower (< 100)"))) %>%
ggplot(aes(x = mpg, y = wt)) +
geom_point() +
theme_bw() +
facet_wrap(~size, labeller = label_parsed)
#> Error in parse(text = as.character(values)): <text>:1:13: unexpected '>='
#> 1: Horsepower (>=
#> ^
创建于 2024 年 11 月 18 日,使用 reprex v2.1.1
下面我们修改了
labels=...
mtcars %>%
mutate(size = ifelse(hp >= 100, 'greater', 'lesser'),
size = factor(size, levels = c("greater", "lesser"),
labels = c("Horsepower * ' (>=' * 100 * ')'",
"Horsepower * ' (<' * 100 * ')'"))) %>%
ggplot(aes(x = mpg, y = wt)) +
geom_point() +
theme_bw() +
facet_wrap(~size, labeller = label_parsed)