Knitr is an R package that allows us to intermingle R code with LaTeX code. One way to achieve this is inline code chunks. This apporach is demonstrated below.
# r-noweb-file.Rnw
\documentclass{article}
\begin{document}
This is an Rnw file (R noweb). It contains a combination of LateX and R.
<<my-label>>=
print("This is an R Code Chunk")
x <- seq(1:10)
@
Above is an internal code chunk.
We can access data created in any code chunk inline with our LaTeX code like this.
The length of array x is \Sexpr{length(x)}.
\end{document}