Here is your data frame. You have to change all the values present in the column PassOrFail to TRUE
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))
Student$PassOrFail = TRUE
<img src="/library/images-tutorials/1.student_data_frame3.png" alt="data frame, r language" class="img-responsive">
You can also use the above code like below
Student$PassOrFail = FALSE
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.
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.