record function

Capture all Output

This function silences all warnings, errors & messages and instead returns a list containing the results (if it didn't error) + the warning and error messages as character vectors.

record(expr)

Arguments

• expr: An expression to be executed

Returns

A list containing

• results - The object returned by expr or list() if an error was thrown
• warnings - NULL or a character vector if warnings were thrown
• errors - NULL or a string if an error was thrown
• messages - NULL or a character vector if messages were produced

Examples

## Not run:

record({
  x <- 1
  y <- 2
  warning("something went wrong")
  message("O nearly done")
  x + y
})
## End(Not run)