Dear Michael,
the help system has been rearranged considerably. It is not possible to
use binary packages prepared under R-2.10.x with earlier versions of R.
The other way round is also not a really good idea.
Note also that the most recent version of TeachingDemos (2.5) uses help
markup that does not work with R versions prior to R-2.10.0. You can use
TeachingDemos 2.4 with R-2.9.x, tough (and that version is still
available in the Windows binary repository for the R-2.9.x series. Hence
just say
install.packages("TeachingDemos")
if you wanto to stay with that "ancient" version of R.
Best wishes,
Uwe
On 29.01.2010 20:34, Michael Friendly wrote:
[Env: Win Xp]
Is there any options() setting or call to help() or help.start() that
will allow me to view a help file for
a package built under R 2.10.x under R 2.9.2?
I'm using both R 2.9.2 and R 2.10.1, but prefer the former because the
CHM help is so much easier
to use. Yet, if I install a package built for R 2.10.x, I can't find
*any* way to display a help file in this
package.
For example, after library(TeachinDemos),
> ?HWidentify
Error in print.help_files_with_topic(x) :
No text help for 'HWidentify' is available:
corresponding file is missing
In addition: Warning message:
In
print.help_files_with_topic("C:/R/R-2.9.2/library/TeachingDemos/chm/HWidentify")
:
No CHM help for 'HWidentify' in package 'TeachingDemos' is available:
the CHM file for the package is missing
So, I try
> help.start()
updating HTML package listing
updating HTML search index
If nothing happens, you should open 'C:\R\R-2.9.2\doc\html\index.html'
yourself
I can then get to
file:///C:/R/R-2.9.2/library/TeachingDemos/html/00Index.html
but then all the links there give Not Found, e.g.,
file:///C:/R/R-2.9.2/library/TeachingDemos/html/HWidentify.html
and, indeed, C:\R\R-2.9.2\library\TeachingDemos\html contains
only 00Index.html.
All the links therein are to .html files in the same directory, so of
course
are wrong.
-Michael
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