Run code chunks in subfiles

Question

My document consists of several subfiles that are imported into my main. However, i would like to run code chunks with R output in each subfile before the document is stitched together by main.tex. I've tried several approaches, but LaTeX only recognizes each chunk in the subfiles as text and not sourcecode thus only gives me the plain text and not the content of the code. Is it possible to force LaTeX to run the underlying chunk?

TLDR question: Is it possible to run code chunks in subfiles?

E.g. I want to run the following code in a subfile, plot the plot in my main through my subfile.

<<echo=TRUE, cache=TRUE>>=
x = 1:10
plot(x)
@

EDIT:

main: main.Rtex

\documentclass{article}
\usepackage{subfiles}
\begin{document}
\subfile{sections/introduction}
\end{document}

subfile: sections/introduction.Rtex

\documentclass[../main.tex]{subfiles}
\begin{document}
  <<echo=TRUE, cache=TRUE>>=
    x = 1:10
    plot(x)
    @
\end{document}