R error with Knitr in Lyx

Question

This is the code I am using, which runs fine in Rstudio

a1 <- matrix(c(1601, 162527, 510, 412368), nrow=2, byrow=T)  
chisq.test(a1, correct=F)

This is the error I get

! Undefined control sequence.  
<argument> ^^M##^^M##  Pearson'  
s Chi-squared test^^M##^^M## data:  a1^^M## X...  
l.356 \end{verbatim}  

The control sequence at the end of the top line  
of your error message was never \def'ed. If you have  
misspelled it (e.g., `\hobx'), type `I' and the correct  
spelling (e.g., `I\hbox'). Otherwise just continue,  
and I'll forget about whatever was undefined.

It would work if I do

c1 <- chisq.test(a1, correct=F)

then call for the p-value using

c1$p.value

What is causing this problem?

just realized you asked the same question half a year ago... — Yihui Xie, Mar 03 '13 at 03:12
I thought the other one has to do with significant codes, which one this doesn't have. — Saber CN, Mar 03 '13 at 03:31
Both problems were caused by the single quotes. I can well understand that you did not realize this. I hope to close this question not because it is not a good question, but just to avoid duplicate answers. — Yihui Xie, Mar 03 '13 at 03:37
@SaberCN, yes that is one possibility. You as original poster should see an option to delete (or close) it. — Dirk Eddelbuettel, Mar 03 '13 at 03:49

score 2 · Answer 1 · answered Mar 03 '13 at 03:10

2

This is a known bug which has been fixed in the development version (see NEWS). For now, you can install it from:

install.packages('knitr', repos = 'http://www.rforge.net/')

answered Mar 03 '13 at 03:10

Yihui Xie

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R error with Knitr in Lyx

1 Answers1