How to wait for a keypress in R?

Question

I want to pause my R script until the user presses a key. How do I do this?

Accepted Answer

As someone already wrote in a comment, you don't have to use the cat before `readline()`. Simply write:

```
readline(prompt="Press [enter] to continue")
```

If you don't want to assign it to a variable and don't want a return printed in the console, wrap the `readline()` in an `invisible()`:

```
invisible(readline(prompt="Press [enter] to continue"))
```

Solution