[R] R v2.13.2 - Cannot find Rcmd on path?

Henrik Bengtsson hb at biostat.ucsf.edu
Mon Nov 14 18:30:58 CET 2011


FYI,

you can use tools such as Path Manager 1.1.1 (GPL) on Windows:

 http://www.softpedia.com/get/System/System-Miscellaneous/Path-Manager.shtml

to list, modify (add, remove, reorder, remove duplicates, normalize)
your PATH environment variable.  For each directory it identifies in
PATH it will also let you know whether it is valid or not and list
files that exist in that directory, iff valid.  So, if you don't see
Rcmd.exe where you expect it to be, you know you did something wrong
when setting PATH.

My $.02

/Henrik

On Sun, Nov 13, 2011 at 9:50 PM, Yihui Xie <xie at yihui.name> wrote:
> Well, I just mean to give the user an option during installation --
> like you did in Rtools. I have decided not to argue on this issue any
> more. Thanks a lot anyway!
>
> Regards,
> Yihui
> --
> Yihui Xie <xieyihui at gmail.com>
> Phone: 515-294-2465 Web: http://yihui.name
> Department of Statistics, Iowa State University
> 2215 Snedecor Hall, Ames, IA
>
>
>
> On Sun, Nov 13, 2011 at 4:20 PM, Duncan Murdoch
> <murdoch.duncan at gmail.com> wrote:
>> On 11-11-13 1:15 PM, Yihui Xie wrote:
>>>
>>> I remember I was torn into pieces a few months back when I made a
>>> wishlist here that R adds its bin path to PATH on Windows during
>>> installation. People had tons of reasons of objection. Although I do
>>> not use these batchfiles (usually I do not actually use Windows), I
>>> see there is a motivation behind them: there needs to be an easy way
>>> for Windows users to use R in command line (e.g. R CMD build...). You
>>> may argue that it is easy to understand PATH and modify it manually,
>>> and I will say nothing but "thank" Windows again. Sorry this seems to
>>> be off-topic.
>>
>> I don't remember any rending and tearing, but I do remember objections to
>> modifying the path during installation.  I wouldn't want to write code to do
>> that, because it's hard:
>>
>> - Most people don't want to put R first, because it may hide something
>> important.
>>
>> - Putting it last won't work if an earlier version is already there.
>>
>> So you need to examine the path and correct it, an automatic change is
>> unlikely to be successful.
>>
>> But if you want to write code to do that, just go ahead and do it.  Put it
>> in a package, even.
>>
>> Duncan Murdoch
>>
>>>
>>> Regards,
>>> Yihui
>>> --
>>> Yihui Xie<xieyihui at gmail.com>
>>> Phone: 515-294-2465 Web: http://yihui.name
>>> Department of Statistics, Iowa State University
>>> 2215 Snedecor Hall, Ames, IA
>>>
>
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