How to create one vector from another, but its elements must be greater than x?

Question

I would like that v2 only those values which are greater than x. It even comes close, but creates a vector with logical elements. I wish they were the elements of v1.

v1 <-c (1500, 1600, 1700, 1800)

x <- 1600

v2 <- v1 > x

Answer 1

Without appealing to a ready-made function, you can simply use a conditional within a for loop as in the example below:

v1=c(1500,1600,1700,1800)
v2=c()
for (i in v1) {
  if (i>1600) {
   v2=c(v2,i)
  }
}
print(v2)

It is inefficient and takes a lot of syntax, but you better understand what the computer is doing. Pre-ready solutions include the use of functions. An example is the function Filter:

v1=c(1500,1600,1700,1800)

v2=Filter(function(x) x>1600, v1)

print(v2)

Or, in an even simpler solution suggested in the comment by another user:

v2=v1[v1 > x]
print(v2)