INPUT ARGUMENTS RETURN OUTPUT “monday” monday is weekday. “tuesday” tuesday is weekday. “wednesday” wednesday is weekday. “thursday” thursday is weekday. “friday” friday is weekday. A.4 Consider a vector of integers in R, called "numbers", containing the following values: 9, 3, 12, 2, 17. You need to perform the following tasks using loops (for, while, or repeat) in R: a) Print the square of each number in the "numbers" vector. b) Calculate the sum of the cube of all the numbers in the "numbers" vector. A.5 Create a function “weekday_weekend” which suggests whether the day is weekday or weekend. (Hint: Use If…Else… Statements). The function should print output something like this: “saturday” saturday is weekend. “sunday” sunday is weekend. A.6 Create a vector “days” which consists of names of all seven days in a week. Check for the “weekday_weekend” function on each element of the vector days. (Hint: Using for loop).

library(tidyverse)
numbers <- c(9, 3, 12, 2, 17)

for (num in numbers)
{
  square <- num^2
  print(num)
  
}

sum <- 0
for (num in numbers)
{
  cube <- num^3
  sum <-  sum + cube
}

print(sum)

weekday <- c('monday','tuesday','wednesday','thursday','friday')
weekend <- c('saturday','sunday')

weekday_weekend <- function(day){
  if (day %in% weekday) {
    print(paste(day,' is weekday.', sep = ''))
  } else if (day %in% weekend) {
    print(paste(day,' is weekend.', sep = ''))
  } else {
    print('Please enter a valid day!')
  }
}

days <- c('monday','tuesday','wednesday','thursday','friday','saturday','sunday')

for (day in days)
{