[R] Show Progress in loop

[Prof Brian Ripley]

On Mon, 10 Oct 2005, Philippe Grosjean wrote:

> Hello,
>
> You must explicitly use print(), show() on an object -here, use
> print(i)- in a loop or alternatively, use cat() to display string like:
> cat("loop", i, "\n")
>
> With RGui under Windows, there is another subtility: if you have turn on
> 'Misc -> Buffered output' (it is ON by default), all output are delayed
> until the end of the command processing. You need to use flush.console()
> to tell to print i immediatelly within a loop. The best synthax is
> (since the command is only usable under Windows):

Not so: all systems have it.  It is also useful on MacOS X.  All this is 
on the help page.

This is in the rw-FAQ: it seems we have lost the convention of not 
answering FAQs but referring people to the appropriate FAQ.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595