r dataframe column factor

# Step 1: Create a data frame
df <- data.frame(
  Name = c("Alice", "Bob", "Charlie", "David"),
  Age = c(25, 30, 22, 28),
  Gender = c("Female", "Male", "Male", "Male")
)

# Step 2: Convert the 'Gender' column to a factor
df$Gender <- factor(df$Gender)

# Step 3: Display the data frame
print(df)

Explanation: 1. We create a data frame df with columns 'Name', 'Age', and 'Gender'. 2. We convert the 'Gender' column to a factor using the factor() function, which is useful for categorical variables. 3. Finally, we print the data frame to display the changes.