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Factors and how to create them
1. Factors and forcats
Working with factors
Modifying factor variables


In this part, we will learn about factors. Factors are used in R to store categorical variables. Categorical variables have a limited set of possible values, e.g., a factor named seasons can store four possible values: "spring", "summer", "fall", and "winter". Each possible value of a factor is called a level. Factors can be very useful in some situations and not at all useful in others. Things get especially tricky if you are using those base R functions that force all character variables to be factors. However – and as you learned earlier – that's not the case in tidyverse.

We're going to use a package called forcats to work with factors. This is the tidyverse way of making factors easier to handle.


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