❝本节来介绍如何使用「ggplot2」来绘制渐变图形，下面小编使用palmerpenguins包内置的企鹅数据集来进行展示仅作图形展示用，希望各位观众老爷能够喜欢。❞
加载R包
代码语言：javascript
复制library(tidyverse)
library(ggdist)
library(palmerpenguins)
library(gghalves)
数据清洗
代码语言：javascript
复制plot_data <- penguins %>%
select(species, body_mass_g) %>%
drop_na()
数据可视化
代码语言：javascript
复制ggplot(data = plot_data, mapping = aes(x = species, y = body_mass_g, fill = species))
# 添加渐变区间，位置设置为"dodge"以避免重叠，不显示边框色
stat_gradientinterval(position = "dodge",colour = NA, width = 0.8)
# 添加半眼图形，调整各种视觉参数
stat_halfeye(adjust = .3,width = .3,.width = 0,
justification = -.3,point_colour = 'NA',
slab_fill=NA, slab_colour='#3e2c12',
slab_size=0.4)
# 添加箱型图，设置宽度和异常值形状
geom_boxplot(width = .15,outlier.shape = NA,fill='#fafafa')
# 添加半点图，设置透明度和大小
geom_half_point(side = "l",alpha = 0.1, size = 1.8)
# 设置坐标轴范围和裁剪方式
coord_cartesian(xlim = c(1, NA),ylim = c(2000, 7000),clip = "off")
# 移除图例和透明度指引
guides(fill="none", alpha='none')
labs(x =NULL, y = NULL) # 移除x和y轴标签 # 应用经典主题
theme_classic()
# 自定义主题设置，例如轴标题、文本、背景等
theme(axis.title.y =element_blank(),
axis.text = element_text(hjust = 0.5,size=10,color = "black"),
plot.background = element_rect(fill = "#fafafa", colour="#fafafa"),
panel.background = element_rect(fill = "#fafafa", colour="#fafafa"),
plot.margin = unit(c(0.3,0.3,0.3,0.3), "cm"),
legend.position = "none",
axis.ticks = element_blank())
