Your program needs to take a number as input, and output the number of students who have a grade greater than the given input.

Question

Where is the error? It shows wrong output.
input <- readLines('stdin')
x <- as.integer(input[1])

data <- data.frame(
"id" = c(1:10),
"grade" = c(75, 26, 54, 90, 86, 93, 48, 71, 66, 99)
)
y <- data[data

Answer 1

#You may try this code , it is working for me .

input <- readLines('stdin')
x <- as.integer(input[1])

data <- data.frame(
"id" = c(1:10),
"grade" = c(75, 26, 54, 90, 86, 93, 48, 71, 66, 99)
)

# Here is the new code i added
#To count number of rows you can use

data <- subset(data,grade>x)
nrow(data)

Answer 2

index the elements of grade which are > x, then get the length of the indexed vector.

alternatively, subset the data frame and leave only the rows with grade > x. Then count the number of rows.

Answer 3

No, I won't complete the program. Please show your code. If you search for R on Q&A you can get ideas how other users solved it

Answer 4

It is not helpful to just give a ready-made code without explanation

Answer 5

Can you please complete the program here? Lisa
I didn't understand

Answer 6

Okay thanks