我正在尝试制作一个基于knitr的程序,从字符向量读取rmarkdown并写入textConnection。我几乎得到了我想要的东西,但我发现knitr只生成块的html,只是通过rmarkdown传递给html。
以下是代码:
text_input <- "Title
========================================================
This is an R Markdown document. Markdown is a simple formatting syntax for authoring web pages (click the **MD** toolbar button for help on Markdown).
When you click the **Knit HTML** button a web page will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:
```{r cache=TRUE}
x <- cars
summary(x)
```
You can also embed plots, for example:
```{r fig.width=7, fig.height=6,cache=TRUE}
plot(x)
```
"
library(knitr)
outfile <- textConnection("foo.html", "w")
pat_md()
render_html()
knit(input=NULL,output=outfile,text=text_input)
close(outfile)
cat(foo.html,sep="\n")
哪个输出:
Title
========================================================
This is an R Markdown document. Markdown is a simple formatting syntax for authoring web pages (click the **MD** toolbar button for help on Markdown).
When you click the **Knit HTML** button a web page will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:
<div class="chunk" id="unnamed-chunk-1"><div class="rcode"><div class="source"><pre class="knitr r">x <- cars
summary(x)
</pre></div><div class="output"><pre class="knitr r">## speed dist
## Min. : 4.0 Min. : 2
## 1st Qu.:12.0 1st Qu.: 26
## Median :15.0 Median : 36
## Mean :15.4 Mean : 43
## 3rd Qu.:19.0 3rd Qu.: 56
## Max. :25.0 Max. :120
</pre></div></div></div>
You can also embed plots, for example:
<div class="chunk" id="unnamed-chunk-2"><div class="rcode"><div class="source"><pre class="knitr r">plot(x)
</pre></div><div class="rimage default"><img src="figure/unnamed-chunk-2.png" title="plot of chunk unnamed-chunk-2" alt="plot of chunk unnamed-chunk-2" class="plot" /></div>
</div></div>
这是预期的行为还是我做错了什么?
答案 0 :(得分:3)
我用不同的方式解决了这个问题(使用knitr创建md文件,然后使用md - &gt; html创建):
text_input <- "markdown text"
library(knitr)
foo.html <- knit2html(text=text_input)
谢谢一惠。但是正如我在下面的评论中指出的那样,结果html仍然存在一些问题(仅限字符向量输入而不是常规文件)。