[R] error preparing a package for lazy loading with R CMD

[Liaw, Andy]

Not sure if this will help, but have you tried loading the package after
install with no lazyload?   I've found that if there are syntax errors in
the R source, that can give the problem you described.  Just a guess.

Andy

> From: Patrick Giraudoux H
> 
> Dear Lister,
> 
> I  work with R 2.0.1 and Windows XP, and meet a strange 
> trouble trying to 
> make a R package with a make-package.bat file John Fox has 
> kindly provided 
> (see detailed script below). I am working with it since some 
> months with 
> excellent results (I do'nt use compiled C code so far). Just 
> adding a new 
> function in the R directory today, when running make-package and thus 
> excuting the command ..\..\bin\R CMD build --force --binary 
> --auto-zip 
> %1,  I got the following message after the "compile" stage, 
> preparing the 
> package for lazy loading :
> 
> preparing package pgirmess for lazy loading
> Error in "names<-.default"(`*tmp*`, value =c("R", "Platform", 
> "Date", :
>          names attribute[4] must be the same length as the vector [1]
> Execution halted
> make: ***[lazyload] Error 1
> *** Installation of pgirmess failed ***
> 
> (pgirmess is the package name)
> 
> ... and the zip file is not generated.
> 
> I have checked and rechecked everything during this (long) 
> afternoon... and 
> get nothing except that if I drag out any of the *.r file of 
> the R folder, 
> everything comes to be OK (except the function that has been 
> dragged out is 
> missing...). It looks like if having added one extra function 
> in the R 
> folder on the top of the earlier 32 (+ 2 data frames) makes problem.
> 
> I have then consulted John Fox offlist and he seems quite 
> perplexed "I'm 
> not sure why you're experiencing this problem". On his advise I have 
> included "LazyLoad: no" in the package description file. In this case 
> everything goes smoothly then (except LazyLoad will not be 
> activated), the 
> zip file is generated and the package can be installed from R.
> 
> Has anybody an idea about why a problem occurs when preparing 
> the package 
> for lazy loading? Any remedy?
> 
> Kind regards,
> 
> Patrick
> 
> Make-Package script:
> 
> cd c:\R\rw2001\src\library
> del %1\INDEX
> del %1\data\00Index
> del %1\chm\*.* /Q
> ..\..\bin\R CMD build --force --binary --auto-zip %1
> ..\..\bin\R CMD build --force %1
> ..\..\bin\R CMD check %1
> cd %1.Rcheck
> dvipdfm %1-manual
> notepad 00check.log
> cd ..
> cd ..
> 
> 
> >From: "John Fox" <jfox at mcmaster.ca>
> >To: "'Patrick Giraudoux H'" <patrick.giraudoux at univ-fcomte.fr>
> >Subject: RE: [R] writing a simple package in R 2.0 under Windows XP
> >Date: Sun, 23 Jan 2005 11:41:25 -0500
> >X-Mailer: Microsoft Office Outlook, Build 11.0.6353
> >X-MIME-Autoconverted: from quoted-printable to 8bit by 
> >utinam.univ-fcomte.fr id j0NGfJoD011345
> >
> >Dear Patrick,
> >
> >I'm not sure why you're experiencing this problem.
> >
> >Two suggestions: (1) Since the problem appears to be with 
> preparing the
> >package for lazy loading, try adding the directive 
> "LazyLoad: no" (without
> >the quotes) to the package's DESCRIPTION file. (2) Rather 
> than using my
> >batch file, run the commands one at a time to see exactly 
> where the problem
> >is produced; then you could send a message to r-help.
> >
> >I hope this helps,
> >  John
> 
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