I have solved the problem. It seems that the \Sexpr{} sequence is processed
by R rather than latex. If you use:
Sweave("Sweave-test-1.Rnw", syntax="SweaveSyntaxNoweb")
When processing in R then this is handled in the appropriate way.
Duncan Murdoch-2 wrote:
>
> On 1/6/2009 6:44 AM, Mr Derik wrote:
>> Hello
>>
>> I have been setting up my computer to run Sweave. I have got the whole
>> thing
>> working on example files, except that my MikTex returns an "Undefined
>> Control Sequence" error for \Sexpr and my output file contains verbatim
>> code
>> sequences at the apropriate point in the text rather than the R output.
>> The
>> rest of the output file is fine with tables, R code sequences and figures
>> in
>> the right place and correctly formatted. I have searched everywhere for
>> advice on what to do about this, any ideas would be gratefully received.
>>
>
> You need to give more details. Which version of R are you running? How
> are you running Sweave? Are you including \usepackage{Sweave} in your
> Sweave document? (This is not always necessary, but is usually a good
> idea).
>
> Duncan Murdoch
>
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> PLEASE do read the posting guide
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>
>
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