[Rd] bug in xyplot xlab, etc (PR#7076)

[Uwe Ligges]

rmh at temple.edu wrote:

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> 
> This looks to me like a bug in xyplot and friends.  I anticipated
> that all three of these xyplot statements would work.  This is based
> on the documentation line
> 
>>The 'label' tag can be omitted if it is the first element of the list.
> 
> 
>>x <- 1:10
>>y <- 1:10
>>xyplot(y ~ x, xlab=list("abcd", cex=2))  ## works as intended
>>xyplot(y ~ x, xlab=list(label="abcd"))   ## works as intended
>>xyplot(y ~ x, xlab=list("abcd"))         ## error message
> 
> Error in if (is.list(label) && names(label)[1] == "") label[[1]] else default.label : 
> 	missing value where TRUE/FALSE needed


Let me also point out that the documentation (?xy.plot from lattice) is 
like some of those german bureaucreatic documents:

   ylab  Fine control possible, see entry for xlab.
   xlab  Fine control is possible, see entry for sub.
   sub   See entry for main for finer control options.

Deepayan might want to point to "main" from all of these ....

Best,
Uwe


BTW: Is it the correct way to submit bug reports on recommended packages 
to the R's bug repository? Instead, I would have send it to Deepayan as 
the maintainer of lattice (maybe a point that is not entirely clear from 
the FAQs: distinguishing contributed, recommended and base package 
related to bug reports).



> --please do not edit the information below--
> 
> Version:
>  platform = i386-pc-mingw32
>  arch = i386
>  os = mingw32
>  system = i386, mingw32
>  status = 
>  major = 1
>  minor = 9.1
>  year = 2004
>  month = 06
>  day = 21
>  language = R
> 
> Windows XP Home Edition (build 2600) Service Pack 1.0
> 
> Search Path:
>  .GlobalEnv, file:c:/HOME/rmh/hh/splus.library/HH/.RData, package:methods, package:stats, 
> package:utils, package:multcomp, package:mvtnorm, package:abind, package:graphics, 
> package:lattice, package:grid, Autoloads, package:base
> 
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