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Exercise

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.

Instructions 1/3

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  • 1
    • Select the species, island, and sex columns using their names.
  • 2
    • Select the species, culmen_length_mm, and body_mass_g columns using their position.
  • 3
    • Select the species column using its name as a string, the sex columns using a symbol, and island using its position.