[R] building packages using S4 methods

[Marsland, John]

I can only find the option "--save" under install.
I'm using "Rcmd build --binary pkgName" on a Windows NT platform is there
anyway I can pass a similar directive?

Is there any more detailed documentation for Rcmd beyond the "Writing R
Extensions" manual or should I look at the R source code?

Thanks,

John Marsland



> -----Original Message-----
> From: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk]
> Sent: 30 July 2003 13:00
> To: Marsland, John
> Cc: 'r-help at lists.R-project.org'
> Subject: Re: [R] building packages using S4 methods
> 
> 
> On Wed, 30 Jul 2003, Marsland, John wrote:
> 
> > I have been building a package around a sequence of S4 
> classes which I have
> > coded in separate *.R files in the "./R" subdirectory of 
> the package.
> > The package builds without error, but when I load it in R I get:
> 
> [Incidentally, packages with R syntax errors `build without 
> errors': that
> is not a useful test.]
> 
> > Error in reconcilePropertiesAndPrototype(name, slots, prototype,
> > superClasses) :
> > 	Class "xxxx" extends an undefined class ("yyyyyy"
> > 
> > I guess R is trying to source the *.R files in the wrong 
> order? Since both
> 
> Or perhaps you didn't give them names in the right order?  
> The files are
> not in fact source-d, but they are concatenated in 
> alphabetical order and 
> the concatenated file is parsed and evaluated (at load time 
> unless you 
> used --save: see below).
> 
> `alphabetical order' is potentially locale-dependent, 
> although we try to 
> ensure that the C locale is used, I don't think this is bound 
> to work on 
> Windows.
> 
> > classes are defined in the package and work fine at the 
> command prompt. 
> > Is it just that this has not been an issue before owing to R's lazy
> > evaluation?
> > Is there anything I can do about this... maybe by putting 
> something in the
> > "./install.R"?
> 
> How are you building the package?  Are you using --save?  If 
> not, that is 
> probably the solution as it is highly recommended for 
> packages using S4 
> classes.
> 
> -- 
> Brian D. Ripley,                  ripley at stats.ox.ac.uk
> Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
> University of Oxford,             Tel:  +44 1865 272861 (self)
> 1 South Parks Road,                     +44 1865 272866 (PA)
> Oxford OX1 3TG, UK                Fax:  +44 1865 272595
> 


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