DataScience Made Simple

Convert column to categorical in R

Convert Column to categorical in R is done using as.factor(). Let’s see how to convert column type to categorical in R with an example.

Let’s first create the dataframe

df1 = data.frame(Name = c('George','Andrea', 'Micheal','Maggie','Ravi','Xien','Jalpa'), 
                 Mathematics_score=c(45,78,34,89,66,72,87),
                 IS_PASS=c(0,1,0,1,1,1,1))
df1

so the dataframe will be

convert column to categorical in R 1

And the column types are

Str(df1)

convert column to categorical in R 2

IS_PASS column  is numerical.

 

Convert column to categorical in R:

Now let’s convert numerical IS_PASS column to categorical by using as.factor()

df1$IS_PASS = as.factor(df1$IS_PASS) # converting to categorical
Str(df1)

So the result is

convert column to categorical in R 3

 

                                                                                   

Author

  • Sridhar Venkatachalam

    With close to 10 years on Experience in data science and machine learning Have extensively worked on programming languages like R, Python (Pandas), SAS, Pyspark.

    View all posts

Related Posts: