Hello @Chenyan ,
in addition to the remark of Jake (@elmstedt ):
you can show a chunk in your RStudio Community post by enclosing them in a section with four backticks.
I think your chunk would then show like
```{r, fitting, eval = FALSE}
imputation <- function(data) {
<<fitting>>
<<imputing>>
<<score>>
<<score_der>>
<<s_mis>>
<<d>>
<<analysis>>
<<u>>
<<tau>>
}
```
I assume that the <<name>> constructs mean that you want to include a chunk name.
You can not do that in an R function and that is what you specify by
imputation <- function(data) { ... }
I suggest you take a look at https://rmarkdown.rstudio.com/docs/articles/rmarkdown.html and the beautiful resource https://bookdown.org/yihui/rmarkdown/ that is mentioned there.
And of course you can use different functions (but not chunks) in your imputation function:
```{r, fitting, eval = FALSE}
imputation <- function(data) {
myfitresult <- fit_the_data(data) # your function fit_the_data should be defined
...
}
```
Let us know if this make sense to you. If you can be more specific about what you want to achieve, this would be helpful.