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ggplot2可视化经典案例(4) 之云雨图

ggplot2可视化经典案例(4) 之云雨图

作者: R语言数据分析指南 | 来源:发表于2021-02-04 23:35 被阅读0次

之前分享过云雨图的小例子,现在分析一个进阶版的云雨图,喜欢的小伙伴可以关注个人公众号R语言数据分析指南持续分享更多优质案例,在此先行拜谢了!!

加载R包

library(tidyverse)
library(colorspace)
library(ggtext)
library(tidytuesdayR)
library(ggdist)

设置主题

theme_set(theme_minimal())

theme_update(
  panel.grid.major = element_line(color = "grey92", size = .4),
  panel.grid.minor = element_blank(),
  axis.title.x = element_text(color = "grey30",
  margin = margin(t = 7)),
  axis.title.y = element_text(color = "grey30",
  margin = margin(r = 7)),
  axis.text = element_text(color = "grey50"),
  axis.ticks =  element_line(color = "grey92", size = .4),
  axis.ticks.length = unit(.6, "lines"),
  plot.title = element_text(hjust = 0,
  color = "black",size = 21, margin = margin(t = 10, b = 35)),
  plot.subtitle = element_text(hjust = 0,
  face = "bold", color = "grey30",size = 14,
  margin = margin(0, 0, 25, 0)),
  plot.title.position = "plot",
  plot.caption = element_text(color = "grey50",
  size = 10, hjust = 1,lineheight = 1.05,
  margin = margin(30, 0, 0, 0)),
  plot.caption.position = "plot",
  plot.margin = margin(rep(20, 4)))

加载数据

通过tidytuesdayR包可以轻松的访问每周的TidyTuesday项目数据集,建议小伙伴多多了解TidyTuesday

pal <- c("#FF8C00", "#A034F0", "#159090")

tuesdata <- tidytuesdayR::tt_load('2020-07-28') 

df_penguins <- tuesdata$penguins

数据清洗

df_rect <- tibble(xmin = c(-Inf, 2.46, 3.27),
xmax = c(Inf, Inf, Inf),ymin = c(3, 2, 1),
ymax = c(Inf, Inf, Inf))

df_peng_iqr <- 
  df_penguins %>% 
  mutate(bill_ratio = bill_length_mm / bill_depth_mm) %>% 
  filter(!is.na(bill_ratio)) %>% group_by(species) %>% 
  mutate(median = median(bill_ratio),
         q25 = quantile(bill_ratio, probs = .25),
         q75 = quantile(bill_ratio, probs = .75),
         n = n()) %>% ungroup() %>% 
  mutate(species_num = as.numeric(fct_rev(species)))

ggplot2数据可视化

p <- ggplot(df_peng_iqr,aes(bill_ratio,species_num -.2)) +
geom_rect(data = df_rect,aes(xmin = xmin, xmax = xmax,
ymin = ymin, ymax = ymax),inherit.aes = F,fill = "white")+
geom_linerange(data = df_peng_iqr %>% 
group_by(species, species_num) %>% 
summarize(m = unique(median)),
aes(xmin = -Inf, xmax = m, y = species_num,
color = species),
inherit.aes = F,linetype = "dotted",size = .7)+
geom_boxplot(aes(color = species),
width = 0,size = .9)+
geom_rect(aes(xmin = q25,
xmax = median,ymin = species_num - .05,
ymax = species_num - .35),fill = "grey89") +
geom_rect(aes(xmin = q75,xmax = median,
ymin = species_num - .05,ymax = species_num - .35),
fill = "grey79")+
geom_segment(aes(x = q25, xend = q25,y = species_num - .05,
yend = species_num - .35,
color = species),
size = .25)+
geom_segment(aes(x = q75, xend = q75,y = species_num - .05,
yend = species_num - .35,color = species),
size = .25)+
geom_point(aes(color = species), 
shape = "|",size = 5,alpha = .33)
pp <- p + ggdist::stat_halfeye(aes(y = species_num,
color = species,fill = after_scale(lighten(color, .5))),
shape = 18,point_size = 3,interval_size = 1.8,
adjust = .5,.width = c(0, 1))+
geom_text(data = df_peng_iqr %>% 
group_by(species, species_num) %>% 
summarize(m = unique(median)),
aes(x = m, y = species_num + .12,
label = format(round(m, 2), nsmall = 2)),
inherit.aes = F,color = "white",size = 3.5) +
geom_text(data = df_peng_iqr %>% 
group_by(species, species_num) %>% 
summarize(n = unique(n), max = max(bill_ratio, na.rm = T)),
aes(x = max + .01, y = species_num + .02,
label = glue::glue("n = {n}"),
color = species),inherit.aes = F,
size = 3.5,hjust = 0) +coord_cartesian(clip = "off") +
scale_x_continuous(limits = c(1.57, 3.7),
breaks = seq(1.6, 3.6, by = .2),
expand = c(.001, .001)) +
xlab(NULL)+ylab(NULL)+
scale_y_continuous(limits = c(.55, NA),
breaks = 1:3,
labels = c("Gentoo","Chinstrap", "Adelie"),
expand = c(0, 0))
pp + scale_color_manual(values = pal,guide = F) +
  scale_fill_manual(values = pal,guide = F)  +
  theme(panel.grid.major.y = element_blank(),
        axis.text.y = element_text(color = rev(pal),
size = 14, lineheight = .9),
axis.ticks.length = unit(0, "lines"))
原文链接:https://mp.weixin.qq.com/s/GTviigvpYoS-_4pJINnKsA

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