Hi,
I don't know of a standard way to indicate this; I would have suggested
<<combined,expand=FALSE>>
(with expand=TRUE the default), except for the fact that Seth Falcon
already suggested the same notation in his response...so I can only
second the motion.
Kevin
Duncan Murdoch wrote:
> On 3/13/2007 7:02 PM, Kevin R. Coombes wrote:
>> Hi,
>>
>> Consider the following (much simplified) Sweave example:
>>
>> --------------
>>
>> First, we set the value of $x$:
>> <<chunk1,eval=FALSE>>=
>> x <- 1
>> @
>>
>> Then we set the value of $y$:
>> <<chunk2,eval=FALSE>>=
>> y <- 2
>> @
>>
>> Thus, the overall algorithm has this structure:
>> <<combined,eval=FALSE>>=
>> <<chunk1>>
>> <<chunk2>>
>> @
>>
>> <<justDoIt,echo=FALSE>>=
>> <<combined>>
>> @
>>
>> ---------------
>>
>> I'd like to be able to do something like this, where the "combined"
>> chunk prints out in the final LaTeX document essentially verbatim. In
>> particular, I want to see the "<<chunk1>>" unexpanded in that block,
>> since this gives me a nice conceptual overview of the algorithm. (Of
>> courser, this is more useful when chunk1 and chunk2 are much longer
>> than they are in this example....)
>>
>> Is there an option that allows me to get this behavior?
>
> As others have said, the answer is currently no, but in R 2.5.0 this
> should be a relatively easy modification (because it has the ability to
> echo your input, rather than a deparsed version of it). In the other
> platforms you've used, is there a standard syntax to indicate whether or
> not you want the chunks expanded? I can see either behaviour as being
> desirable in different circumstances. Sometimes you want the reader to
> know about your chunk names, and sometimes you don't.
>
> Duncan Murdoch
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