🚀 Programming Example

How to add a new column in the existing Data frame using R language

👁 525 Views

💻 Practical Program

📘 Step Learning

In this question we will add a new column to an existing data frame

📌 Information & Algorithm

In this question we will add a new column to an existing data frame

Here in the existing Data Frame


Student <- data.frame(
RollNo = 1:10,
Marks = c(10, 20, 30, 40, 50, 60, 70, 80, 90, 100), 
PassOrFail = c(F, F, F, F, F, T, T, T, T, T))

In this Data Frame we will add a column StudentName

💻 Program Code

> StudentName <- c("Rumman", "Inza", "Jaman", "Azam", "Samser","Kamran","Roman", "Ali", "Ansar", "Sfik")
> Student$StudentName <- StudentName

🖥 Program Output

<img src="/library/images-tutorials/add-new-column-to-dataframe.png" alt="data frame, r language" class="img-responsive">

> str(Student)
'data.frame':	10 obs. of  4 variables:
 $ RollNo     : int  1 2 3 4 5 6 7 8 9 10
 $ Marks      : num  10 20 30 40 50 60 70 80 90 95
 $ PassOrFail : logi  FALSE FALSE FALSE FALSE FALSE TRUE ...
 $ StudentName: chr  "Rumman" "Inza" "Jaman" "Azam" ...

📘 Explanation

None

🎯 How to learn from this example

First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.

🔥 Practice suggestion

Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.