df_add_category(x, col, values, new.value, factor.handling = "keep")
Arguments
| x |
[data.frame]
Data frame with at least one row and column. |
| col |
[integer | string]
Column number or colmumn name. |
| values |
[character]
Which values of the column col shall be unioned into the new category. |
| new.value |
[any]
New category value. |
| factor.handling |
[string]
Determines how to handle the case that col is a factor column.
Option “drop” converts the factor into a character column. Option
“keep” does the same, but after adding the new category, the factor
property is reestablished. If the factor was ordered, the new category is placed
last. |
Value
Modified data frame.
See also