From mboxrd@z Thu Jan  1 00:00:00 1970
From: Myles English <mylesenglish@gmail.com>
Subject: Re: babel R: should/does order of parameters matter?
Date: Tue, 29 Mar 2011 16:57:37 +0100
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To: Eric Schulte <schulte.eric@gmail.com>
Cc: emacs-orgmode@gnu.org

Eric,

On 23 March 2011 03:03, Eric Schulte <schulte.eric@gmail.com> wrote:
> I believe the problem here is that your :var header argument syntax is
> wrong. =C2=A0A :var header argument must have a name, and equals sign, an=
d an
> assignment for the variable, e.g.
>
> #+begin_src sh :var name=3D"eric"
> =C2=A0echo $name
> #+end_src
>
> #+results:
> : eric

Thanks for your reply, I think I deviated from the correct syntax
while experimenting.  After some more research I think I may have
found either a bug or an omission from the manual.

In order for R to assign column names to the resulting dataframe,
an argument that is a table name must be the first argument at
the point where a function is called from, whether it is executed
directly (from within a source block) or by a #+call.

The full org file that I believe verifies the above statement is
http://pastebin.com/iixQdS0G , but to illustrate the issue:

#+TBLNAME: data
| x | parameter | value |
|---+-----------+-------|
| 0 | heat      |    30 |
| 1 | heat      |    30 |

#+source: func5
#+begin_src R :var name=3Ddata :var a=3D"one" :colnames yes
names(name)
#+end_src

executing directly works as expected:

#+results: func5
| x         |
|-----------|
| x         |
| parameter |
| value     |

try a basic call (ignores :colnames):

#+call: func5(name=3Ddata, a=3D"two")

#+results: func5(name=3Ddata, a=3D"two")
| x         |
| parameter |
| value     |

however, with the table argument last:

#+call: func5(a=3D"two",name=3Ddata)

#+results: func5(a=3D"two",name=3Ddata)
| X0   |
| heat |
| X30  |

of course I have also tried swapping the order of the arguments
in the source block (and the #+calls) and the statement still stands.

Is this confirmable as a bug or have I gone wrong again somewhere?

Thanks,

Myles