Question

1. Assume you have a list L whose members are different stock values.
   1. Write a function in R with one parameter X that will return “S” if the number is bigger than X and “B” otherwise
   2. Apply this function to each member of the list
   3. How can you modify this function so that will accept sequence in its parameter?

Answer 1

Please find the Code below

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a. function is written with name check_boundary

b. Below is the code to apply the function to each member of the list

L <- list(2,4,5,6,7,8,4,3)
X <- 5
check_boundary <- function(arg_1,X) {
if(arg_1 > X){
print("S")
}else{
print("B")
}
}
for(val in L){
check_boundary(val,X)
}

Output

______

I.lı Result $Rscript main.r [1 B" [1 B" [1 B" [1 S [1 S [1 S [1 B" [1 B"

Modified Function so it will accept the sequence in its parameters

_____________________________________

X <- 5
check_boundary <- function(arg_1,X) {
for(val in arg_1){
if(val > X){
print("S")
}else{
print("B")
}
}
}
check_boundary(seq(2,10),X)

Output

______

I.lI Result $Rscript main.r [1 B" [1 B" [1 B" [1 B" [1 S [1 S [1 S [1 S