[R] array() misfeature
Ben Bolker
bolker at ufl.edu
Sun Dec 2 19:31:09 CET 2007
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
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