hope this helps. spencer graves
(Ted Harding) wrote:
Hi Folks, I'm seeking advice about how to resume an outer loop following failure of a function within the loop (which issues an error message).
Essentially, I'm repeating (simulating) a process which involves random sampling, EM and MCMC. I'm walking on very edge of rather thin ice -- data rather thinly spread over many parameters!
Occasionally some component of the loop fails, with an error message. At this point, R quits the run altogether and returns to the command prompt. I then have to restart the whole script.
All that's really needed to cope with the situation is for R to drop that cycle of the loop, and resume with a new cycle.
However, I'm wondering how to set this up. I've had a look at try(), and I'm not at all sure that it does what I would want. What I'd really like is something (inside the loop) on the lines of
on.error(maybe some parameters X) break
where X might specify what sort of error or what function it comes from. Would setting
options(error = break )
do it?
Any other suggestions?
With thanks, Ted.
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