8

我想使用 facet_wrap 生成一个图,该图对换行的每一行都有不同的 y 比例。换句话说,在同一行具有固定刻度,在不同行具有自由刻度,具有固定的 x 刻度。自由秤并没有给我我想要的东西,facet_grid 也没有。如果可能的话,我想避免创建 2 个单独的图,然后将它们粘贴在一起。我正在寻找如下图所示的结果,但第一行的最大 y 比例为 300,第二行的最大 y 比例为 50。谢谢你的帮助!

这是我的代码:

library(ggplot2)
library(reshape)

# set up data frame
dat <- data.frame(jack = c(150,160,170),
              surgeon = c(155,265,175),
              snapper = c(10,15,12),
              grouper = c(5,12,50))
dat$island<-c("Oahu","Hawaii","Maui")
df<-melt(dat)

# plot
ggplot(df, aes(fill=variable, y=value, x=island)) + 
  geom_bar(width = 0.85, position= position_dodge(width=0.5),stat="identity", colour="black") +
  facet_wrap(~variable, scales = "free_y",ncol=2) + 
  theme_bw() +
  theme(strip.text = element_text(size=15, face="bold"))+
  theme(legend.position="none")+
  theme(panel.grid.major  = element_line(colour = "white", size = 0.2))+
  theme(panel.grid.minor  = element_line(colour = "white", size = 0.5))+
  theme(axis.text.x = element_text(angle = 90, hjust =1, vjust =0.5, size=18))+
  labs(y = expression(paste("Yearly catch (kg)")))

在此处输入图像描述

4

1 回答 1

10

利用Eric 评论的链接中排名较低的答案之一,您可以添加一个融合到背景中的图层以强制执行坐标轴。

在这里,我创建了第二个数据框 (df2),它在“夏威夷”处放置一个点,以及您想要的四种变量/鱼类型的最大值(300 或 50)。通过手动设置 geom_point 白色的颜色,它会淡入背景。

library(ggplot2)
library(reshape)

# set up data frame
dat <- data.frame(jack = c(150,160,170),
                  surgeon = c(155,265,175),
                  snapper = c(10,15,12),
                  grouper = c(5,12,50))
dat$island<-c("Oahu","Hawaii","Maui")
df<-melt(dat)
#> Using island as id variables

df2 <- data.frame(island = rep("Hawaii",4), variable = c("jack","surgeon","snapper","grouper"),value = c(300,300,50,50))

ggplot(df, aes(fill=variable, y=value, x=island)) + 
  geom_bar(width = 0.85, position= position_dodge(width=0.5),stat="identity", colour="black") +
  geom_point(data = df2, aes(x = island, y = value), colour = "white") +
  facet_wrap(~variable, scales = "free_y",ncol=2) + 
  theme_bw() +
  theme(strip.text = element_text(size=15, face="bold"))+
  theme(legend.position="none")+
  theme(panel.grid.major  = element_line(colour = "white", size = 0.2))+
  theme(panel.grid.minor  = element_line(colour = "white", size = 0.5))+
  theme(axis.text.x = element_text(angle = 90, hjust =1, vjust =0.5, size=18))+
  labs(y = expression(paste("Yearly catch (kg)")))

于 2015-10-31T19:07:55.153 回答