ggplot 因素的反轴顺序

Question

这是基本图，按从下到上 从一月到十二月的顺序排列。我想按顺序 从上到下 一到十二。

library(tidyverse)
library(nycflights13)
library(ggridges)
ggplot(weather %>% filter(temp > 50), aes(x = temp, y = as.factor(month))) + 
  geom_density_ridges()

这两种解决方案都会产生错误。正确的解决方案是什么？

# BROKEN SOLUTION 1    
ggplot(weather %>% filter(temp > 50), aes(x = temp, y = as.factor(month))) + 
  geom_density_ridges() + 
  scale_y_continuous(trans = "reverse")

Error: Discrete value supplied to continuous scale. In addition: Warning messages: 1: In Ops.factor(x) : ‘-’ not meaningful for factors. 2: Transformation introduced infinite values in continuous y-axis.

还有

# BROKEN SOLUTION 2
ggplot(weather %>% filter(temp > 50), aes(x = temp, y = as.factor(month))) + 
  geom_density_ridges() + 
  scale_y_discrete(limits = rev(levels(as.factor(month))))

Error in is.factor(x) : object 'month' not found

Answer 1

尝试scale_y_discrete(limits = rev)

ggplot 因素的反轴顺序

ggplot reverse axis order for factors

r

ggplot2

ggridges