如何修改R markdown生成的pdf文档中交叉引用的颜色？
---
title: "Annual Report"
author: "Xyz"
date: "`r format(Sys.time(),'%d %B, %Y')`"
output:
bookdown::pdf_document2:
extra_dependencies: ["float"]
number_sections: false
toc: false
linkcolor: blue
---
```{r, echo = FALSE}
library(ggplot2)
data(mtcars)
names(mtcars)
```
### Heading 1
```{r figure-1,echo=FALSE, fig.cap = "Sample Graph 1"}
ggplot(mtcars,aes(x=mpg,y=hp))+
geom_point()+
theme_classic()
```
To see another graph, please see figure \textcolor{blue}{\@ref(fig:figure-2)}
\newpage
### Heading 2
```{r figure-2,echo=FALSE, fig.cap = "Sample Graph 2"}
ggplot(mtcars,aes(x=mpg,y=carb))+
geom_point()+
theme_classic()
```
To see another graph, please see figure \@ref(fig:figure-1)
执行后，我在knitted pdf文档中的标题2之前发现了以下内容。
要查看另一张图，请参阅
代码中的图 refig:figure-2 refig:figure 也没有交叉引用。我想要的是我的文档应该在pdf文档中显示以下行：
要查看另一个图表，请参见图2
上述语句中的“2”应该是超链接，其颜色应该是蓝色，如果用户点击“2”，读者可以跳转到图 2。
---
title: "Annual Report"
author: "Xyz"
date: "`r format(Sys.time(),'%d %B, %Y')`"
output:
bookdown::pdf_document2:
extra_dependencies: ["float"]
number_sections: false
toc: false
linkcolor: blue
---
```{r, echo = FALSE}
library(ggplot2)
data(mtcars)
names(mtcars)
```
### Heading 1
```{r figure-1,echo=FALSE, fig.cap = "Sample Graph 1"}
ggplot(mtcars,aes(x=mpg,y=hp))+
geom_point()+
theme_classic()
```
To see another graph, please see figure \textcolor{blue}{\@ref(fig:figure-2)}
\newpage
### Heading 2
```{r figure-2,echo=FALSE, fig.cap = "Sample Graph 2"}
ggplot(mtcars,aes(x=mpg,y=carb))+
geom_point()+
theme_classic()
```
To see another graph, please see figure \@ref(fig:figure-1)
After execution, I found the following in knitted pdf document before Heading 2.
To see another graph, please see figure reffig:figure-2
reffig:figure in the code is not cross-referenced as well. What I want is that my document should show the following line in the pdf document:
To see another graph, please see figure 2
"2" in the above statement should be hyperlinked and its color should be blue, enabling the reader to jump to figure 2 if user clicks on "2".
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将
urlcolor:blue添加到您的 yaml 应该可以工作。原始答案在这里找到：R markdown 链接在编织为 pdf 时未格式化为蓝色
Adding
urlcolor:blueto your yaml should work.Original answer found here: R markdown link is not formatted blue when knitted to pdf