R 自动选择使条形图显示其结果

我有一个堆叠的条形图，如下所示：

library(ggplot2)
Year      <- c(rep(c("2006-07", "2007-08", "2008-09", "2009-10"), each = 4))
Category  <- c(rep(c("A", "B", "C", "D"), times = 4))
Frequency <- c(1, 1, 8, 32, 216, 431, 319, 368, 423, 645, 234, 685, 166, 467, 274, 251)
Data      <- data.frame(Year, Category, Frequency)
ggplot(Data, aes(x = Year, y = Frequency, fill = Category, label = Frequency)) +
    geom_bar(stat = "identity") +
    geom_text(size = 3, position = position_stack(vjust = 0.5))

库（ggplot2）
年份在绘图上整齐地显示这一点没有理想的解决方案。您可以使用
ggrepel
中的
geom\u label\u repel
：

library(ggplot2)
library(ggrepel)

ggplot(Data, aes(x = Year, y = Frequency, fill = Category, label = Frequency)) +
    geom_bar(stat = "identity") +
    geom_label_repel(size = 3, position = position_stack(vjust = 0.5))


或具有自由刻度的镶嵌面：

ggplot(Data, aes(x = Year, y = Frequency, fill = Category, label = Frequency)) +
    geom_bar(stat = "identity") +
    geom_text(size = 3, position = position_stack(vjust = 0.5)) +
  facet_wrap(.~Year, drop = TRUE, nrow = 1, scales = "free") +
  theme(strip.background = element_blank(), strip.text = element_blank())


或者是来自
ggforce
的
facet\u缩放
：

ggplot(Data, aes(x = Year, y = Frequency, fill = Category, label = Frequency)) +
    geom_bar(stat = "identity") +
    geom_text(size = 3, position = position_stack(vjust = 0.5)) +
  ggforce::facet_zoom(ylim = c(0, 50))


或具有浮动标签：

ggplot(Data, aes(x = Year, y = Frequency, fill = Category, label = Frequency)) +
    geom_bar(stat = "identity") +
    geom_text(data = within(Data, Frequency[Year == "2006-07"] <- NA), size = 3, 
              position = position_stack(vjust = 0.5)) +
  geom_label(data = Data[1:4,], aes(y = 1:4 * 100), 
            position = "stack"

ggplot（数据，不良事件（x=年份，y=频率，填充=类别，标签=频率））+
几何图形栏（stat=“identity”）+
geom_text（data=within（data，Frequency[Year==“2006-07”]）您可以将
check_overlap=T
添加到
geom_text
。顺便说一句，如果您使用
geom_col（）
您可以省去键入
stat=“identity”
非常好的选项！