Grade analysis

Question

I'm stuck with this question. Somebody can help 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)

print(length(data$grade["grade"]>=89,]))

Answer 1

You are not using "x"?
And read again, how to slice vectors.

Answer 2

And pay attention to the task description: It is "greater than", not "greater or equal"

Answer 3

Exactly the 3 things I suggested.

If you need more help, show your updated code.

Answer 4

Yes it is x in place of 89

Answer 5

Ok. But what else to do?

Answer 6

I use that code in place of the above;
Print(length(t(subset(data,data$grade>x))))["grade"]
Not the good one yet