how to round a vector consists of numbers,NA, and NaN

Question

What is the best way to round a vector that consists of numbers, NA, and NaN. I don't want to omit the NA or NaN because I want to retain the order of the numbers.

x = c(2,3,4,NA,"NaN",3, 5)
round(x,2)  #does not work 

Edits: Error in round(x, 2) : Non-numeric argument to mathematical function

Answer 1

x is a character vector because it contains a character "NaN". Converting x to numeric will help.

x = c(2,3,4,NA,"NaN",3, 5)
class(x) # To see the class of x
round(as.numeric(x),2)