array() misfeature

Duncan Murdoch-2 wrote:

On 02/12/2007 11:49 AM, Allen McIntosh wrote:

Version: 2.5.1

That's an obsolete version, but the issue is still present in R-devel.

array() is inconsistent when given non-integral dimensions:

zz <- array(0,dim=c(4,3.01))
dim(zz)

[1] 4 3

zz <- array(0,dim=c(201,4.05))

Error in dim(data) <- dim : dim<- : dims [product 804] do not match the
length of object [814]


[IMHO the code that did this is broken.  My copy of it has been
fixed.  Consistent behavior and/or a clearer error message would
just have made it easier to find the problem.]

I'll add code to coerce dim to integer before using it.  Thanks for the 
report.

Duncan Murdoch

  While you're at it could you fix a trivial typo in ?dim   ?

  in the description of the value argument: "... or a numeric
vector which [is] coerced ..."
 (I would also say that either there should be a comma after
"vector" or "which" should be changed to "that", but never mind ...)

  Ben