[Rd] about integration of a library into package creation

[Nicolas Turenne]

your answer is correct after checking some doc
but examples are rare

when i write in the description file
Depends: R (>= 2.3), quadprog, ade4, spdep 

and in the namespcae file

useDynLib(quadprog)
useDynLib(spdep)
useDynLib(ade4)
importFrom("dist.dudi", "ade4")
importFrom("solve.QP", "quadprog")
importFrom("mstree", "ade4")
importFrom("neig2mat", "ade4")
importFrom("dist.dudi", "ade4")
importFrom("dudi.pca", "ade4")
importFrom("dudi.coa", "ade4")
importFrom("knearneigh", "spdep")

i obtain :
Namespace dependencies not required:
  dist.dudi dudi.coa dudi.pca knearneigh mstree neig2mat solve.QP

if i delete the importFrom lines
i get an error about "loading / namespace not succesful" for svcr

i think the solution is not far but it is disturbing

thank for help

---
Nicolas


Duncan Murdoch a écrit :

> On 6/12/2006 12:25 PM, Nicolas Turenne wrote:
>
>> in that sense, it is useless to load the library from R source code 
>> making my package
>> which is supposed to include it and load it
>>
>> so if i understand the R philosophy it is not possible to load dll 
>> from outside ;
>> the user has to load my package  and manually has to load the 
>> necessary libraries
>> each time he has to use my library,  right ?
>
>
> Not at all.  When set up correctly, the user should just need to say
> library(svcR) and all necessary packages and DLLs will be loaded.
>
> The way to specify other packages is through the "Depends" line in the 
> DESCRIPTION file, and/or the import/importFrom lines in your NAMESPACE 
> file.
>
> Duncan Murdoch
>
>>
>> -- 
>> Nicolas
>>
>> Prof Brian Ripley a écrit :
>>
>>>
>>> And also to load  the package, maybe with
>>>
>>> rterm R_DEFAULT_PACKAGES=NULL
>>>
>>>> library(svcR)
>>>
>>>
>>>
>>> as these messages often indicate missing package dependencies.
>>>
>>>>> * checking package subdirectories ... WARNING
>>>>> Subdirectory 'src' contains no source files.
>>>>> * checking R files for syntax errors ... OK
>>>>> * checking R files for library.dynam ... OK
>>>>> * checking S3 generic/method consistency ... WARNING
>>>>> Erreur : le chargement du package / espace de noms a echoue' pour 
>>>>> 'svcR'
>>>>> Sequence d'appel :
>>>>> 2: stop(gettextf("package/namespace load failed for '%s'",
>>>>> libraryPkgName(packag
>>>>> e)),
>>>>>        call. = FALSE, domain = NA)
>>>>> 1: library(package, lib.loc = lib.loc, character.only = TRUE, 
>>>>> verbose =
>>>>> FALSE)
>>>>> Execution arrete'e
>>>>> See section 'Generic functions and methods' of the 'Writing R 
>>>>> Extensions'
>>>>> manual.
>>>>> * checking replacement functions ... WARNING
>>>>> Erreur : le chargement du package / espace de noms a echoue' pour 
>>>>> 'svcR'
>>>>> Sequence d'appel :
>>>>> 2: stop(gettextf("package/namespace load failed for '%s'",
>>>>> libraryPkgName(packag
>>>>> e)),
>>>>
>>>>
>>>
>>
>> ______________________________________________
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>
>
>