[R] A question about R environment

[Prof Brian Ripley]

On Tue, 9 Jan 2007, Tong Wang wrote:

> Hi,
>   Thanks a lot for your response,   but it is strange that when I do attach() , I got the follow error:
>  Error in attach(e) : attach only works for lists and data frames
>
> Any suggestions on this?

Update your R, as the posting guide asked you to in this circumstance.
This was new in R 2.4.0.

You don't need the baggage of the R.utils package here: the base function 
sys.source loads into an environment.  So the definitive way to do this is

env <- attach(NULL, name = "myenv")
sys.source("some file", env)

and that has worked since well before 2.0.0.

>
>
> tong
>
> ----- Original Message -----
> From: Henrik Bengtsson <hb at stat.berkeley.edu>
> Date: Monday, January 8, 2007 10:40 pm
> Subject: Re: [R] A question about R environment
> To: Gabor Grothendieck <ggrothendieck at gmail.com>
> Cc: Tong Wang <wangtong at usc.edu>, R help <r-help at stat.math.ethz.ch>
>
>> sourceTo() in R.utils will allow you to source() a file into an
>> environment.
>> /Henrik
>>
>> On 1/9/07, Gabor Grothendieck <ggrothendieck at gmail.com> wrote:
>>> Try this:
>>>
>>>> e <- new.env()
>>>> e$f <- function(x)x
>>>> attach(e)
>>>> search()
>>>  [1] ".GlobalEnv"        "e"                 "package:stats"
>>>  [4] "package:graphics"  "package:grDevices" "package:utils"
>>>  [7] "package:datasets"  "package:methods"   "Autoloads"
>>> [10] "package:base"
>>>> f
>>> function(x)x
>>>
>>> On 1/8/07, Tong Wang <wangtong at usc.edu> wrote:
>>>> Hi  all,
>>>>
>>>> I created environment  "mytoolbox" by :   mytoolbox <-
>> new.env(parent=baseenv())> > Is there anyway I put it in the search
>> path ?
>>>>
>>>> If you need some background :
>>>>  In a project, I often write some small functions,  and load
>> them into my workspace directly,   so when I list the objects
>>>>  with ls(), it looks pretty messy.  So I am wondering if it is
>> possible to creat an environment,  and put these tools into
>>>>  this environment.  For example,  I have functions    fun1(),
>> fun2() ......    and creat an environment  mytoolbox  which
>>>>  contains all these functions.  And it should be somewhere in
>> the search path:   ".GlobalEnv"        "mytoolbox"
>>      "package:methods"  ........
>>>>
>>>> ______________________________________________
>>>> R-help at stat.math.ethz.ch mailing list
>>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>>> PLEASE do read the posting guide http://www.R-
>> project.org/posting-guide.html
>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>
>>>
>>> ______________________________________________
>>> R-help at stat.math.ethz.ch mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide http://www.R-project.org/posting-
>> guide.html> and provide commented, minimal, self-contained,
>> reproducible code.
>>>
>>
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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