ggplot2中汇总统计信息的图例

library(ggplot2)

# 创建数据
data <- data.frame(
  x = c("A", "B", "C"),
  y = c(10, 20, 30),
  group = c("Group 1", "Group 1", "Group 2")
)

# 创建柱状图
ggplot(data, aes(x = x, y = y, fill = group)) +
  geom_bar(stat = "identity") +
  scale_fill_manual(values = c("Group 1" = "blue", "Group 2" = "red"))

library(ggplot2)

# 创建数据
data <- data.frame(
  x = c(1, 2, 3),
  y = c(4, 5, 6),
  group = c("Group 1", "Group 2", "Group 3")
)

# 创建散点图
ggplot(data, aes(x = x, y = y, color = group)) +
  geom_point() +
  scale_color_manual(values = c("Group 1" = "blue", "Group 2" = "red", "Group 3" = "green")) +
  guides(color = guide_legend(title = "Custom Title",
                               labels = c("Label 1", "Label 2", "Label 3")))