[Rd] Dependency problem for "hasArg"
mauricio.zambrano at jrc.ec.europa.eu
Tue Jul 3 09:07:01 CEST 2012
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'.
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,
Water Resources Unit
Institute for Environment and Sustainability (IES)
Joint Research Centre (JRC), European Commission
webinfo : http://floods.jrc.ec.europa.eu/
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>> For whatever reason, loading R via Rscript does not load the base package
>> "methods" whereas loading the R console does. I'm not entirely sure
>> why this
>> is the case, and I'm sure someone who knows more about the differences
>> between the two could chime in here.
>> View this message in context:
>> Sent from the R devel mailing list archive at Nabble.com.
>> R-devel at r-project.org mailing list
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