Turn NA into Factor Level Using addNA() Function in R (Example Code)
In this R tutorial you’ll learn how to apply the addNA function.
Constructing Example Data
x <- factor(c("xxx", "yo", NA, NA, # Create factor vector in R "yo", NA, "xxx", NA)) x # Display example factor in RStudio console # [1] xxx yo <NA> <NA> yo <NA> xxx <NA> # Levels: xxx yo |
x <- factor(c("xxx", "yo", NA, NA, # Create factor vector in R "yo", NA, "xxx", NA)) x # Display example factor in RStudio console # [1] xxx yo <NA> <NA> yo <NA> xxx <NA> # Levels: xxx yo
Example: Converting NA Values into Factor Level Using addNA() Function
x_new <- addNA(x) # Using addNA function x_new # Display new factor vector # [1] xxx yo <NA> <NA> yo <NA> xxx <NA> # Levels: xxx yo <NA> |
x_new <- addNA(x) # Using addNA function x_new # Display new factor vector # [1] xxx yo <NA> <NA> yo <NA> xxx <NA> # Levels: xxx yo <NA>
Related Articles
Here, you may find some additional resources on topics such as factors, numeric values, character strings, and data conversion.