CODEWITHSUNDEEP
rfunction
amiller54321
amiller54321

Reputation: 11

Using the result of one R function in another R function

I am very very new to R and programming in general and I am asking this question as part of a degree program. Don't worry, our professor said we could use StackOverflow. So here is my question: our first requirement is to create a function that returns TRUE or FALSE based on a passing grade score of 70. Here is my code for this: 

passGrade <- function(x) {
 if(x>=70) {
  return('TRUE')
 }
 return('FALSE')
}

The second requirement is to use the results from this function and write a new function that will print "Congrats" is TRUE and "Try Harder!" if FALSE. It seems like I need to store the results of the first set of code as a variable, but when I do that it is not correctly read in the second code set. Here is my failed attempt

passGrade <- function(x) {
 if(x>=70) {
  x <- return('TRUE')
 }
 x <- return('FALSE')
}

Message <- function(x) {
 if(x == 'TRUE') {
  return("Congrats")
 }
 return("Try Harder!")
}

I am sure there is a super simple solution to this, but I am not having any luck.

Upvotes: 1

Views: 960

Answers (1)

ashwin agrawal
ashwin agrawal

Reputation: 1611

Below is a simple solution, you can directly return TRUE or FALSE based on the condition and then pass this to Message function to print out the required output, as shown below:

passGrade <- function(x) {
  if(x>=70) {
    return(TRUE)
  }
  return(FALSE)
}

Message <- function(x) {
  if(x == TRUE) {
    return("Congrats")
  }
  return("Try Harder!")
} 

Message(passGrade(60))
Message(passGrade(80))

Output:

[1] "Congrats"
[1] "Try Harder!"

Upvotes: 2

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