pause in function execution

a=function() {
print("start")
print(Sys.time())
Sys.sleep(5)
print(Sys.time())
print("end") }

a()

results in:

[1] "start"
[1] "2009-02-09 18:25:41 EST"
[1] "2009-02-09 18:25:46 EST"
[1] "end"

all printed together after 5 seconds.

On Feb 9, 2009, at 6:21 PM, Rolf Turner wrote:

On 10/02/2009, at 12:09 PM, Fuchs Ira wrote:

Yes, Windows has that in the Misc menu, but I don't see a way to do
this on the Mac.

        In my experience output is not buffered on a Mac.
        Are you actually *printing* out the results you want to see?

        Could you, as the posting guide requests, provide a minimal
        self-contained example?

                cheers,

                        Rolf Turner

On Feb 9, 2009, at 5:51 PM, Duncan Murdoch wrote:

On 09/02/2009 5:07 PM, Fuchs Ira wrote:

I would like to have a function which gets data, does a
calculation  and prints a result and then waits some number of
seconds and  repeats.  If I use Sys.sleep, the execution is  

pausing

but the  function output is buffered so that it all comes out when
the function  terminates.  How can I get output while the function
continues to  execute?

Turn off buffering.  In Windows, this is a menu item. Presumably
it's possible on whatever platform you're using.

Duncan Murdoch

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