I noticed something recently that I thought was odd:
delayedAssign("x", { Sys.sleep(5); 1 })
x ## Hit Ctrl-C within the first second or 2
gives me:
> delayedAssign("x", { Sys.sleep(5); 1 })
> x ## Hit Ctrl-C within the first second or two
> x
Error: recursive default argument reference
>
My only problem here is that now I'm stuck---there's no way to recover whatever
'x' was supposed to be (i.e. 1).
In reality, I want 'x' to be a promise to load a moderately large data object.
But if I (or a user) Ctrl-C's during the load I'll have to start from scratch.
Is there anyway to recover the promise (or the value of the expression) in case
of an interrupt?
-roger
--
Roger D. Peng | http://www.biostat.jhsph.edu/~rpeng/
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