使用R中的dplyr将数据帧中的一些行替换为其他新数据帧

library(dplyr)

# 创建原始数据帧
df <- data.frame(
  id = c(1, 2, 3, 4, 5),
  name = c("Alice", "Bob", "Charlie", "David", "Eve"),
  age = c(25, 30, 35, 40, 45)
)

# 创建新的数据帧
new_df <- data.frame(
  id = c(2, 4),
  name = c("Updated Bob", "Updated David"),
  age = c(31, 41)
)

# 使用mutate()和if_else()进行行替换
result <- df %>%
  mutate(
    name = if_else(id %in% new_df$id, new_df$name[match(id, new_df$id)], name),
    age = if_else(id %in% new_df$id, new_df$age[match(id, new_df$id)], age)
  )

# 输出结果
print(result)