Column selection
Selecting only the columns you need is helpful to limit the number of information you work with. It can save some memory and make the prints out easier to read. Let's see it in action on the penguins dataset.
In this exercise, you'll select various columns using different ways. It's a good opportunity to see what approach you like the best! Remember, you can always use the describe() function to find out more about the DataFrame.
The DataFrames package and the penguins dataset have been loaded for you.
本练习是课程的一部分
Data Manipulation in Julia
交互式实操练习
通过完成这段示例代码来试试这个练习。
# Select species, island, and sex columns
____(____, ____, ____, ____)