如何在R中根据另一列的类别多次求和一列的值？

# 安装并加载dplyr包
if (!require(dplyr)) {
  install.packages("dplyr")
  library(dplyr)
}

# 创建一个示例数据框
data <- data.frame(
  Category = c("A", "B", "A", "C", "B", "A"),
  Value = c(10, 20, 30, 40, 50, 60)
)

# 根据Category列求和Value列的值
result <- data %>%
  group_by(Category) %>%
  summarise(SumValue = sum(Value))

# 打印结果
print(result)

# A tibble: 3 x 2
  Category SumValue
  <fct>     <int>
1 A           100
2 B           70
3 C           40