R-划分data.frame的一些列并保留其他列

# 创建一个示例data.frame
df <- data.frame(
  ID = c(1, 2, 3, 4, 5),
  Name = c("Alice", "Bob", "Charlie", "David", "Eve"),
  Age = c(25, 30, 35, 40, 45),
  Gender = c("Female", "Male", "Male", "Male", "Female"),
  Salary = c(50000, 60000, 70000, 80000, 90000)
)

# 使用subset()函数划分data.frame的一些列并保留其他列
subset_df <- subset(df, select = c(ID, Name, Age))

# 输出划分后的data.frame
print(subset_df)

  ID    Name Age
1  1   Alice  25
2  2     Bob  30
3  3 Charlie  35
4  4   David  40
5  5     Eve  45