In R how do I find whether an integer is divisible by a number?

Question

Sorry for the inexperience, I\'m a beginning coder in R For example: If I were to make a FOR loop by chance and I have a collection of integers 1 to 100 (1:100), what would

Answer 1

for (x in 1:100) { 
  if (x%%5 == 0) {
    print(x)
  }
}

Answer 2

How's this?

x <- 1:100
div_5 <- function(x) x[x %% 5 == 0]
div_5(x)

Answer 3

The modulo operator %% is used to check for divisibility. Used in the expression x %% y, it will return 0 if y is divisible by x.

In order to make your code work, you should include an if statement to evaluate to TRUE or FALSE and replace the y with 0 inside the curly braces as mentioned above:

for (x in 1:100) { 
  if (x%%5 == 0) {
    print(x)
  }
}

For a more concise way to check for divisibility consider:

for (x in 1:100) { 
  if (!(x%%5)){
    print(x)
  }
}

Where !(x %% 5) will return TRUE for 0 and FALSE for non-zero numbers.

Answer 4

for (i in 1:10) 
{
   if (i %% 2)
   {
      #some code
   }
}