I just noticed that the question has already been answered on the R-help list before:
http://r.789695.n4.nabble.com/Sweave-font-problems-with-Signif-codes-lines-td977346.html
Adding the following R line solves the problem:
options(useFancyQuotes = FALSE)
Mark
>
>
> On Fri, Dec 2, 2011 at 4:08 PM, Mark Heckmann wrote:
>> I have the following Sweave file which gets sweaved correctly.
>>
>> <<>>=
>> m <- lm(y1 ~x1, anscombe)
>> summary(m)
>> @
>>
>> I include the sweaved .tex file into another .tex file via include.
>> When I use a single umlaut in the .snw file a warning occurs.
>> As a result part of the summary output is not contained in the .tex file.
>>
>> δ
>> <<>>=
>> m <- lm(y1 ~x1, anscombe)
>> summary(m)
>> @
>>
>> You can now run (pdf)latex on 'ch1.tex'
>> Warnmeldungen:
>> 1: ch1.Snw has unknown encoding: assuming Latin-1
>> 2: ungόltige Zeichenkette in Konvertierung der Ausgabe (wrong character in conversion of output)
>>
>> Interestingly, this error does NOT occur, when I omit the summary(m) statement.
>>
>> δ
>> <<>>=
>> m <- lm(y1 ~x1, anscombe)
>> #summary(m)
>> @
>>
>> You can now run (pdf)latex on 'ch1.tex'
>> Warnmeldung:
>> ch1.Snw has unknown encoding: assuming Latin-1
>>
>> I know that I can prevent this by adding a line at the beginning of the .snw file:
>>
>> \usepackage[utf8]{inputenc}
>>
>> δ
>> <<>>=
>> m <- lm(y1 ~x1, anscombe)
>> summary(m)
>> @
>>
>> This gets sweaved correctly without warnings:
>>
>> But this solution is not good as it is not the preamble of the .tex document where I add the usepackage line.
>> This will cause an error when processing the entire document with tex.
>>
>> How can I achieve the last result in another way?
>> I tried:
>>
>> Sweave('/Users/markheckmann/Desktop/test_sweave/ch1.Snw', encoding="UFT-8")
>>
>> But this does not work either when the usepackage line is omitted.
>>
>> I am stuck here. Can anyone help?
>>
>> TIA
>> Mark
>>
>>
>>
>> Mark Heckmann
>> Blog: www.markheckmann.de
>> R-Blog: http://ryouready.wordpress.com
>>
>>
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>>
>> ______________________________________________
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>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
Mark Heckmann
Blog: www.markheckmann.de
R-Blog: http://ryouready.wordpress.com
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