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Fix explicit missings using fill()

One type of missing value that can be obvious to deal with is where the first entry of a group is given, but subsequent entries are marked NA.

These missing values often result from empty values in spreadsheets to avoid entering multiple names multiple times; as well as for "human readability".

This type of problem can be solved by using the fill() function from the tidyr package.

Este exercício faz parte do curso

Dealing With Missing Data in R

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Instruções do exercício

  • Use fill() to fill down the "name" observations in the frogger dataset.

Exercício interativo prático

Experimente este exercício completando este código de exemplo.

# Print the frogger data to have a look at it
___

# Use `fill()` to fill down the name variable in the frogger dataset
___ %>% fill(___)
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