Use Recode List

Add a new column to a data frame containing recoded values from a chosen column in that data frame.

Usage

useRecodeList(df, varName, new_varName, recodeList)

Arguments

df

A data.frame.

varName

Column in df which should be recoded.

new_varName

Column in which the recoded values will be stored.

recodeList

A recode list: a data frame with the columns "oldValues" and "newValues".

Value

The df with a recoded newValues.

Examples

# example data frame
df <- data.frame(id = 1:4, country = c("Berlin", "Kairo", "Englant", "Schottland"))
# example recode list
recodeList <- data.frame(oldValues = c("Berlin", "Kairo", "Englant"),
                         newValues = c("Deutschland", "Ägypten", "England"))

useRecodeList(df, varName = "country", new_varName = "r_country", recodeList)
#>   id    country   r_country
#> 1  1     Berlin Deutschland
#> 2  2      Kairo     Ägypten
#> 3  3    Englant     England
#> 4  4 Schottland        <NA>