Convert to lower case in R dataframe column

To convert a column in R to lower case we use tolower() function. Let’s see how to convert to lower case in R with an example.

Let’s first create the dataframe.

df1 = data.frame(State = c('Arizona AZ','Georgia GG', 'Newyork NY','Indiana IN','Florida FL'), 
                 Score=c(62,47,55,74,31))
df1

so the dataframe will be

Convert to lower case in R dataframe column 1

 

Convert to lower case in R dataframe:

tolower() function is used to convert the column to lower case in R

df1$state_lower = tolower(df1$State)
df1

So the lower case converted column along with dataframe will be

Convert to lower case in R dataframe column 2