Convert Character to Integer Column in R DataFrame

To convert a Character (string) column to an Integer column in R DataFrame:

df$column_name <- as.integer(df$column_name)

Example of Converting Character to Integer Column in R DataFrame

In the following example, the character ‘Price‘ column is converted to integer column in R DataFrame:

# Create a DataFrame
df <- data.frame(
                Product = c("Laptop", "Printer", "Keyboard"),
                Price = c("950", "250", "120")
                )

# Display the original DataFrame
print("Original DataFrame:")
print(df)

# Print the data types before conversion
print("Data Types Before Conversion:")
str(df)

# Convert the Price column to integer
df$Price <- as.integer(df$Price)

# Print the data types after conversion
print("Data Types After Conversion:")
str(df)

Note that the str(df) was added to print the data types of the columns before and after the conversion.

The result before and after the conversion of the ‘Price‘ column from character to integer:

[1] "Original DataFrame:"

   Product Price
1   Laptop   950
2  Printer   250
3 Keyboard   120

[1] "Data Types Before Conversion:"

'data.frame':   3 obs. of  2 variables:
 $ Product: chr  "Laptop" "Printer" "Keyboard"
 $ Price  : chr  "950" "250" "120"


[1] "Data Types After Conversion:"

'data.frame':   3 obs. of  2 variables:
 $ Product: chr  "Laptop" "Printer" "Keyboard"
 $ Price  : int  950 250 120

As seen in the original DataFrame, the ‘Price‘ column had a character data type (as highlighted in yellow), but changed to integer (as highlighted in green).