example 020 for loop in markdown about knitr-examples HOT 5 CLOSED

Please take a closer look at that example. In particular, I only have one argument in knit_child(). Note you have to use the latest version of knitr as well.

from knitr-examples.

Hi Yihui, I did take a closer look and found the following:
Without externalizig the R code the md example works ok.

I can run the example and gives me expected results in markdown.

But if i externalize te R code and read it with 'read_chunk' results are like:

Collect results from the template for each i and write them back later.

read_chunk("020-for-loop-run-all.R")
\section{Now i is \Sexpr{i}}

<<>>= print(i) iris[i, ] @

\section{Now i is \Sexpr{i}}

<<>>= print(i) iris[i, ] @

\section{Now i is \Sexpr{i}}

<<>>= print(i) iris[i, ] @

These seem Latex like to me?
Does knitr_child do latex by default?

Please advise.

from knitr-examples.

No, knit_child() simply follows the syntax of the parent document. It does not use LaTeX by default.

If you want to use Markdown, you should use Markdown for both the parent document and the template. You are not supposed to use the Rnw/LaTeX syntax <<>>=.

I have no idea about your 020-for-loop-run-all.R. Please post a complete example if possible.

from knitr-examples.

Hi Yihui,

thank you for your time, indeed the issue was that in the externalized R script I forgot to replace the Rnw with the Rmd. Now I added two chunks one for latex and one for markdown and all works well.
Sorry for my sloppyness, I should have seen this before posting.

hugo

## @knitr run-all-lx
out = NULL
for (i in 1:3) {
  out = c(out, knit_child('020-for-template.Rnw'))
}

## @knitr run-all-md
out = NULL
for (i in 1:3) {
  out = c(out, knit_child('020-for-template.Rmd'))
}

from knitr-examples.

No problem.

from knitr-examples.