Question

If a warning or error occurs, I would like to print the name of the function generating the error.

tryCatch in R allows one to handle errors in a function call, perhaps it is part of the solution? For example, this could be in a context like:

handleErr <-function(e) {
    print("you had an error in function:")
    print( WHAT CAN I PUT HERE??! )
}

tryCatch(  myFunction(), error=handleErr )

Answer 1

This should work

handleErr <- function(e) 
    {
    cat(paste("you had an error in function: ", e$call, "\n"))
    }


myfunct <- function()
    {
    stop()
    }

tryCatch(myfunct(), error=handleErr)