"Charles C. Berry" <ccberry@ucsd.edu> writes:

> On Mon, 23 Jun 2014, Rainer M Krug wrote:
>
>> "Charles C. Berry" <ccberry@ucsd.edu> writes:
>>
>> V> On Fri, 20 Jun 2014, Rainer M Krug wrote:
>>>
>>>> Attached please find =the reworked patch.
>>>>
>>>> 1) uses local() and closes connection
>>>> 2) does not leave a variable cal;led file behind
>>>>
>>>
>
> [deleted]
>
>>
>> OK - attached please find two patches:
>>
>> 0001-lisp-ob-R.el-Fix-tangling-with-tables.patch
>> 0002-Make-transfer-of-values-from-R-type-aware.patch
>>
>> The first one fixes tangling with tables including discussed
>> suggestions, the second one moves the definition of the R code into
>> defconst and introduces type awareness for the transfer of *values*, but
>> not tables. I reworked your suggestion and now integer are transferred
>> to R as integers (L) and float as double.
>> This already worked for tables.
>>
>> Could you please check the second patch? In my checks everything worked
>> as expected.
>
> I think these are good to go.

Great - Eric - could you apply them if you are happy as well?

>
> I checked several cases and all seemed to work as expected.

Good to know.

>
> Some comments on this and your recent posts in this thread:
>
> I see you took the suggestion to use (prin1-to-string value) on the 
> 'left-over' objects. With that stuff like :var x=[1 2 3] will work. :-)
>
> The only failure I could trigger was with this block:
>
> #+BEGIN_SRC R :session :var x=(org-export-get-backend 'latex)
> x
> #+END_SRC
>
> which triggered 'Eval buffer', added a bunch of ^G's to my session log, 
> and hung until I ran C-g (keyboard-quit).
>
> When run with :session none, it works. I suspected the long string tripped 
> over a limitation or bug in iESS-mode or comint-mode, but this runs:

Am I wrong, or is this a rather unusual usage scenario? 

When I copy the command executed into an R session outside emacs/ESS, it
gives me a new line with a +, so the command is not complete and
requires a " to complete. But then the vartiable only contains a part of
the string. So I guess there is a problem with escaping the string.

When I paste it into an R session in emacs, I get these ^G.

Given that your example below (with a more usual variable?) works, and
the error above is also present when using the actual implementation of
the variable transfer, I would leave it as an unsolved mystery and
investigate afterwards.

Cheers,

Rainer

>
> #+BEGIN_SRC R :session :var x=(append (make-vector 10000 '(1 2)) '((1 2 3))) 
> :results output
> summary(x)
> #+END_SRC
>
> so I am not sure what gives.
>
> Chuck
>

-- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa

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