[R] jointprior in deal package

Spencer Graves spencer.graves at pdf.com
Fri Jan 13 02:18:56 CET 2006

	  In case you haven't already solved this problem (I have seen no 
replies to this post), I will offer a suggestion.  First, I've never 
used the deal package.  I installed it and tried the example provided 
with the documentation for "jointprior".  It seemed to return something 
sensible -- certainly NOT an error message.

	  Have you considered making a local copy of "jointprior", then 
invoking 'debug(jointprior)', then walking trough the function line by 
line (as described in teh 'debug' documentation)?  If you do this, you 
will find exactly the place the command that generates the error 
message.  The 'debug' procedure also allows you to look at any object in 
the local environment created by "jointprior".  By doing this, you might 
get a better idea of the problem.

	  Another alternative would be to consider the differences between the 
example provided with the documentation and your "tor.nw".  You may be 
able to identify the problem from that.  If that failed, I would then 
try to modify "tor.nw" to produce the simplest possible example I could 
think of that would still produce the error message.  In the course of 
doing that, you may be able to resolve the issue.  If not, if you send 
your simplest possible example to this list, someone else might be able 
to help you.

	  A reproducible example is nearly always easier to diagnose than a 
relatively vague description like you provided.  To get an answer to the 
question that you asked, (a) your question must reach someone who has 
used the deal package and knows that specific error message and (b) that 
person must have the time and interest to respond.  The probability of 
that happening may be quite low.  By contrast, if you submit a toy 
example that doesn't quite work, anyone interested in playing a few 
minutes with the "deal" package can study your example and possibly take 
it to the next step.

	  In general, I believe that providing a simple reproducible example 
probably increases by a couple of orders of magnitude the odds of 
receiving a useful answer quickly.

	  hope this helps.
	  spencer graves
 > PLEASE do read the posting guide! 

Tim Smits wrote:

> Dear all,
> I recently started using the deal package for learning Bayesian 
> networks. When using the jointprior function on a particular dataset, I 
> get the following message:
>  >tor.prior<-jointprior(tor.nw)
> Error in array(1, Dim) : 'dim' specifies too large an array
> What is the problem? How can I resolve it?
> Thanks,
> Tim
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