[R] immediate print

Waterman, DG (David) david.waterman at diamond.ac.uk
Tue Feb 5 17:20:29 CET 2008


Hi everyone,
 
I have a function containing a loop that takes some time to complete.
Before I enter the loop I want to print a text string to the screen
explaining what is being calculated, however, I find that the
information is not printed until the function exits. Is there a way of
immediately printing a message from within a function as a side effect
before it returns?

code example:

myFunc <- function(){
  print.noquote("some message that I want to print before exiting the
function")
  j <- 0
  for (i in 1:1000000){
    j <- j + 1
  }
  j
}
 
Best wishes,
David
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