根据RMarkdown中的输出运行块

Question

我有一个大文件，必须同时以pdf和docx格式编译。作为统一两个输出的一种方式，我想知道是否可以根据所选的输出运行代码。我做了一个最小的可复制示例。

---
title: MyTest
output:
  word_document:
    fig_caption: yes
    toc: no
  pdf_document:
    latex_engine: xelatex
---


```{r setup_docx, include=FALSE}
library(knitr)
library(captioner)
knitr::opts_chunk$set(fig.path = 'images/',
                      echo = FALSE, 
                      warning = FALSE, 
                      message = FALSE,
                      include = TRUE)
```


# In Office Word the following is required

```{r figs, include=FALSE}
# Figures Required for Word Output
fig_nums <- captioner()
fig_nums("AppleFig", "This is the caption of my AppleFig")
```

These can be seen in `r fig_nums("AppleFig",display="cite")`


```{r, fig.cap=fig_nums("AppleFig")}
knitr::include_graphics("images/AppleFig.png")
```



```{r setup_pdf, include=FALSE}
library(knitr)
knitr::opts_chunk$set(fig.align='center',
                      fig.pos = 'H',
                      fig.path = 'images/',
                      echo = FALSE, 
                      warning = FALSE, 
                      message = FALSE,
                      include = TRUE,
                      out.width=".9\\textwidth")
```

# For LATEX

These can be seen in \ref{fig:AppleFig}

```{r, fig.cap="\\label{fig:AppleFig}This is the caption of my AppleFig."}
knitr::include_graphics("images/AppleFig.png")
```

目前，我有2个文档运行代码的每个部分。有没有办法让我根据输出选择运行哪些块？

如果可能的话，我的下一个步骤将是尝试为 ref\{figs:至fig_nums("

好奇地希望从论坛中获得一些意见，我认为如果有可能，这对许多人来说将非常有用。