Overwrite current output in the R console

Question

I have been playing around with the R function txtProgressBar(). How can I hijack the function\'s ability to overwrite the current output in the console?

i.e. the p

Answer 1

In case you want to use the function message to print something, you can set its parameter appendLF to FALSE to avoid it printing a new line and then the use the carriage return ('\r') character to return to the start of the line, for example:

for (i in 1:5) {
  message('\r', i, appendLF = FALSE)
}