Sign up ×
TeX - LaTeX Stack Exchange is a question and answer site for users of TeX, LaTeX, ConTeXt, and related typesetting systems. It's 100% free, no registration required.

I want to generate a report for three types of analysis I am performing. But each time when I perform the analysis it can happen that one or more than one type of analysis occur. I want to put condition in the report that will run the part of report according to the type of analysis performed. For each analysis I need to repeat the chunk say n times. I am stuck at writing a for loop for the code chunk. 'a' is a vector eg code:

for(i in 1:n)
\section{Frequency Analysis}
share|improve this question
I'm not quite sure what you are trying to accomplish, but have a look at either tikz/pgf or luatex, both have for-loops. –  Psirus Jul 19 '12 at 17:49

1 Answer 1

See for an example with knitr. You cannot insert LaTeX into R code directly (it is not like PHP), but you can knit a child document for n times with different values of i.

share|improve this answer
I'm not able to run your example. When I am running the code a .tex file gets generated but fails to give a pdf document. I have attached the log file and the .tex file along. –  ankit Jul 20 '12 at 10:22
Error: running 'texi2dvi' on 'temp.tex' failed LaTeX errors: :1: LaTeX Error: Can be used only in preamble. :1: LaTeX Error: Can be used only in preamble. :14: LaTeX Error: Can be used only in preamble. :16: LaTeX Error: Command \hlnumber already defined. Or name \end... illegal, :17: LaTeX Error: Command \hlfunctioncall already defined. Or name \end... illegal, In addition: Warning message: running command '"C:\PROGRA~1\Miktex\miktex\bin\texi2dvi.exe" --quiet --pdf "temp.tex" -I "C:/PROGRA~1/R/R-214~1.2/share/texmf/tex/latex" -I "C:/PROGRA~1/R/R-214~1.2/share/texmf/bibtex/bst"' had status 1 –  ankit Jul 20 '12 at 10:33
Inorder to save space I have removed- :See the LaTeX manual or LaTeX Companion for explanation. Type H <return> for immediate help –  ankit Jul 20 '12 at 11:09
could you paste the log somewhere like pastebin? I cannot really read the log here. BTW, are you using the latest version of knitr? –  Yihui Jul 20 '12 at 21:59
After using the latest knitr package I was able to get a pdf file but there were following problems with them. i. when I use knit2pdf no pdf is generated and here is the link to log-file link ii. when I use compile pdf tab a pdf is generated with only one file(Now i is 1) in it along with some text articlegraphicx, color upqoute framed alltt alltt I understand these are the package names, but dont know why they are printed in the pdf. link –  ankit Jul 23 '12 at 14:39

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.