[Rd] 7 arguments passed to .Internal(identical) which requires 6

luke-tierney at uiowa.edu luke-tierney at uiowa.edu
Wed Jun 6 20:29:53 CEST 2012

On Wed, 6 Jun 2012, Matthew Dowle wrote:

> Dan Tenenbaum <dtenenba <at> fhcrc.org> writes:
>> I know this has come up before on R-help
>> (http://r.789695.n4.nabble.com/7-arguments-passed-to-Internal-identical-which-
> requires-6-td4548460.html)
>> but I have a concise reproducible case that I wanted to share.
>> Also, please note the Bioconductor scenario which is potentially
>> seriously impacted by this.
>> The issue arises when a binary version of a package (like my example
>> package below) is built under R 2.15.0 Patched but then installed
>> under R 2.15.0.  Our package AnnotationDbi (which hundreds of other
>> packages depend on) is impacted by this issue to the extent that
>> calling virtually any function in it will return something like this:
>> Error in ls(2) :
>>   7 arguments passed to .Internal(identical) which requires 6
>> My concern is that when R 2.15.1 is released and Bioconductor starts
>> building all its packages under it, that R 2.15.0 users will start to
>> experience this problem. We can ask all users to upgrade to R 2.15.1
>> if we have to, but it's not usually the case that a minor point
>> release MUST be installed in order to run packages built under it
>> (please correct me if I'm wrong). We would much prefer a workaround or
>> fix to make an upgrade unnecessary.
> I'm seeing the same issue. Installing the latest R-Forge .zip of data.table
> built using 2.15.0 patched, on R 2.15.0 (or 2.14.1 same issue), then running
> data.table(a=1:3) produces the "7 arguments passed to .Internal(identical)
> which requires 6" error.  traceback() and debugger() just display the top level
> call. debug(data.table) and stepping through reveals it is a call to identical
> () but just a regular one. No .Internal() call in the package, let alone
> passing 6 or 7 arguments to .Internal.
> Not sure how else to debug or trace it. R-Forge is byte compiling data.table
> using R 2.15.0 patched (iiuc), would that make a difference when the byte code
> is loaded into 2.15.0 which doesn't have the new argument in identical()?

Yes it would.


> Matthew
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Luke Tierney
Chair, Statistics and Actuarial Science
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa                  Phone:             319-335-3386
Department of Statistics and        Fax:               319-335-3017
    Actuarial Science
241 Schaeffer Hall                  email:   luke-tierney at uiowa.edu
Iowa City, IA 52242                 WWW:  http://www.stat.uiowa.edu

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