[R] dump not evaluating promises?

[Duncan Murdoch]

On 29/04/2010 12:45 PM, D Sonderegger wrote:
> I'm using the dump command to pass data to WinBUGS/OpenBUGS/JAGS and have run
> into a problem.
>
> Here is some R-code:
> foo <- array(1:6, dim=c(2,3))
> dump('foo', file='dumpdata.R')
> dump('foo', file='dumpdata.R', append=TRUE, evaluate=TRUE)
> foo2 <- array(c(2,3,5,7,9,7,5,3), dim=c(2,4))
> dump('foo2', file='dumpdata.R', append=TRUE)
>
> And here is the file dumpdata.R:
> foo <-
> structure(1:6, .Dim = 2:3)
> foo <-
> structure(1:6, .Dim = 2:3)
> foo2 <-
> structure(c(2, 3, 5, 7, 9, 7, 5, 3), .Dim = c(2L, 4L))
>
>
> Looking at the help page, the second dump of foo should look like the dump
> of foo2 because the evaluate=TRUE flag tells it to evaluate the promises. 
> Unfortunately dump's control parameter didn't offer any solution, either. 
> Am I missing anything?  
>   

I don't get it.  Why would the second dump not show the values 1:6?  How 
would it know about the vector or the new dimension that you put into foo2?

I think you need to be more explicit about what output you were 
expecting, and why.

Duncan Murdoch
> P.S. I've tried this on versions 2.11 and 2.9 and the results are the same.
>
>