How to avoid warning when introducing NAs by coercion

Question

I generally prefer to code R so that I don't get warnings, but I don't know how to avoid getting a warning when using `as.numeric` to convert a character vector. For example: ``` x <- as.numeric(c("1", "2", "X")) ``` Will give me a warning because it introduced NAs by coercion. I want NAs introduced by coercion - is there a way to tell it "yes this is what I want to do". Or should I just live with the warning? Or should I be using a different function for this task?

Accepted Answer

Use `suppressWarnings()`:

```
suppressWarnings(as.numeric(c("1", "2", "X")))
[1]  1  2 NA
```

This suppresses warnings.

How to avoid warning when introducing NAs by coercion

Solution

Problem