Working With Factors in R | Convert Categorical Variable into Factors
In this video we work with factor variables in R. We start with defining the factor variable using factor() and as.factor() functions from base R. Then we discuss the fct() function from the forcats package. We move on the dropping unused levels using fct_drop(), modifying factors order using fct_relevel(), fct_infreq(), fct_rev() and fct_reorder(). Lastly, we discuss modifying factor levels using fct_recode and fct_collapse.
00:00 Install packages
1:52 Defining factors using factor()
6:26 as.factor()
7:48 fct() from forcats
10:18 Dropping unused levels
12:14 Manually Modifying factors order
13:49 Order based on frequency
15:44 Order based on values of another variable
17:19 Modifying factors levels (fct_recode)
18:36 Factor collapse (fct_collapse)
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