org-babel's treatment of NA in R source block

org-babel's treatment of NA in R source block

[Vikas Rawal]

If the result of an R source block contains a data frame with NA, the
NAs are replaced by "nil" when I evaluate the source block. When I
export the file, these appear as nil in the resulting pdf/latex file. 

I would like the NAs to be replaced by blank cells or by a less
obstrusive character like a ".". Is there a simple way I could change
this behaviour?

Vikas

Re: org-babel's treatment of NA in R source block

[Thomas S. Dye]

Vikas Rawal <vikaslists@agrarianresearch.org> writes:

> If the result of an R source block contains a data frame with NA, the
> NAs are replaced by "nil" when I evaluate the source block. When I
> export the file, these appear as nil in the resulting pdf/latex file. 
>
> I would like the NAs to be replaced by blank cells or by a less
> obstrusive character like a ".". Is there a simple way I could change
> this behaviour?
>
> Vikas
>
>
Aloha Vikas,

One route might be the ascii package in R, which exports objects to
several markup languages, including Org. The ascii() argument na.print
is a character string that specifies how NA should appear in the output.

All the best,
Tom

-- 
Thomas S. Dye
http://www.tsdye.com

Re: org-babel's treatment of NA in R source block

[Vikas Rawal]

> >
> > I would like the NAs to be replaced by blank cells or by a less
> > obstrusive character like a ".". Is there a simple way I could change
> > this behaviour?
> >
> > Vikas
> >
> >
> Aloha Vikas,
> 
> One route might be the ascii package in R, which exports objects to
> several markup languages, including Org. The ascii() argument na.print
> is a character string that specifies how NA should appear in the output.
> 

Thanks. That seems very good.

But if the code block is directly producing org markup, what should I
tell my parent org file to expect?

My source block began like this:

#+BEGIN_SRC R :results value :colnames yes :hline yes

I would expect this to change now. How do I say that the result is
already formatted for org?

Vikas

Re: org-babel's treatment of NA in R source block

[Thomas S. Dye]

Vikas Rawal <vikaslists@agrarianresearch.org> writes:

>> >
>> > I would like the NAs to be replaced by blank cells or by a less
>> > obstrusive character like a ".". Is there a simple way I could change
>> > this behaviour?
>> >
>> > Vikas
>> >
>> >
>> Aloha Vikas,
>> 
>> One route might be the ascii package in R, which exports objects to
>> several markup languages, including Org. The ascii() argument na.print
>> is a character string that specifies how NA should appear in the output.
>> 
>
> Thanks. That seems very good.
>
> But if the code block is directly producing org markup, what should I
> tell my parent org file to expect?
>
> My source block began like this:
>
> #+BEGIN_SRC R :results value :colnames yes :hline yes
>
> I would expect this to change now. How do I say that the result is
> already formatted for org?
>
> Vikas
>
>
Does ":results value raw" do what you want?  Another possibility is
":results value org", which changed behavior recently.

All the best,
Tom
-- 
Thomas S. Dye
http://www.tsdye.com