[R] Cannot activate chm help in R 2.10

Charles Annis, P.E. Charles.Annis at StatisticalEngineering.com
Wed Oct 28 03:18:54 CET 2009


While trying to be clever I inserted these lines in ..\Rprofile.site (which
works in R2.9.2 and earlier)

# to prefer Compiled HTML help

but upon re-starting R2.10.0 I learned that

chmhelp = TRUE is no longer supported: use help_type ="text"

I'm sure this was explained elsewhere but I missed it. Could someone explain
why the compiled html help is no longer supported?


Charles Annis, P.E.

Charles.Annis at StatisticalEngineering.com
phone: 561-352-9699
eFax:  614-455-3265
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
Behalf Of Ulrike Groemping
Sent: Tuesday, October 27, 2009 4:17 PM
To: r-help at r-project.org
Subject: Re: [R] Cannot activate chm help in R 2.10

Uwe Ligges-3 wrote:
> Duncan Murdoch wrote:
>> On 10/27/2009 10:56 AM, Ulrike Groemping wrote:
>>> Duncan Murdoch-2 wrote:
>>>> Ulrike Groemping wrote:
>>>> ...
>>>>> My system is Windows XP, German locale computer. On installation, I
>>>>> was
>>>>> asked to decide for text or html help and chose html (there was no 
>>>>> radio
>>>>> button for chm help).  
>>>> ...
>>>> If you set
>>>> options(help_type="html")
>>>> you'll get HTML help with links in your default browser.
>>>> Duncan Murdoch
>>> Thank you very much, this works. But I am very surprised that it is 
>>> not the
>>> default. Having chosen html help during installation, I would have 
>>> expected
>>> this to be active without having to change an option.
>> Yes, it should have been, but there was a bug in the installer, and the 
>> preference indicated there was ignored. This is why it's useful to have 
>> people doing testing during the beta test period:  things like this are 
>> easy to fix, but they need to be noticed first.
>> Duncan Murdoch
> And let me add:
> The whole statistics department has been on two pre-release versions 
> (beta and release-candidate) and nobody reported any error. The 
> installer problem has not been found because I installed from sources 
> anyway. This shows it makes sense to have more than just 400+ beta 
> testers. ;-)
> Uwe

Two more comments: For those of us who have already installed the version
with this installer bug: If you do not want to change the option each time
you call R, it is easy to change it permanently in the file
R_HOME/etc/Rprofile.site (where R_HOME stands for the directory in which
your R is installed, e.g. c:\programs\r\r-2.10.0).  

Regarding beta testing (yes, I admit, I usually leave that to others, and am
nevertheless looking for beta testers of my package RcmdrPlugin.DoE), maybe
it would be time for an experimental design that specifies characteristics
of beta testers to ensure some diversity there, perhaps package DoE.base or
FrF2 could help there (half-, but only half-jokingly) ;-) 

Regards, Ulrike
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