Re: [Rd] Dependency problem for "hasArg"

From: Martin Morgan <>
Date: Tue, 03 Jul 2012 09:10:12 +0200

On 07/03/2012 09:07 AM, Mauricio Zambrano-Bigiarini wrote:
> On 02/07/12 22:51, Martin Morgan wrote:
>> On 07/02/2012 06:23 PM, Charlie Friedemann wrote:
>>> The error message you are getting makes it rather clear what the
>>> problem is.
>>> R is unable to find the function 'hasArg'. As the hasArg function is
>>> part
>>> of the package 'methods', a solution would be to put require(methods)
>>> at the
>>> beginning of your script.
>> But I think the idea will be to import(methods) in HydroGOF, since the
>> package requires these imports to function properly, and import'ing will
>> mean that hasArg does not have to be found on the (user-controlled)
>> search path.
> Thank you very much for your help.
> I have already tried import(methods) in the NAMESPACE of hydroGOF,
> however, I got the following error message when doing R CMD check:
> checking package dependencies ... ERROR
> Namespace dependency not required: ‘methods’
> So it seems that is not possible to force a package to import 'methods'.

In your DESCRIPTION file, add

Imports: methods


> Regarding the Dirk's comment, could it be possible to revisit the
> decision about loading 'methods' in in Rscript ?. BTW, I do not know who
> is responsible for Rscript...
> Thanks in advance,
> Mauricio

Computational Biology / Fred Hutchinson Cancer Research Center
1100 Fairview Ave. N.
PO Box 19024 Seattle, WA 98109

Location: Arnold Building M1 B861
Phone: (206) 667-2793

______________________________________________ mailing list
Received on Tue 03 Jul 2012 - 07:12:41 GMT

This quarter's messages: by month, or sorted: [ by date ] [ by thread ] [ by subject ] [ by author ]

All messages

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Tue 03 Jul 2012 - 10:50:30 GMT.

Mailing list information is available at Please read the posting guide before posting to the list.

list of date sections of archive