Knitr 不在 R 代码块中换行

Question

我的 knitr 报告中的 R 代码块有问题，它们几乎没有用 R 代码在我的所有块中换行。

这是一个典型的 Rmd 文件，包含如下块：

```{r}
batch_merged <- sqldf(c("update batch_merged set winning = 'mix' where (Homophily_Count BETWEEN 1 AND Agents_Count - 1) or (Heterophily_Count BETWEEN 1 AND Agents_Count - 1) or (Preferential_Count BETWEEN 1 AND Agents_Count - 1)", "select * from batch_merged"))
batch_merged <- sqldf(c("update batch_merged set winning = 'hom' where Homophily_Count = Agents_Count", "select * from batch_merged"))
batch_merged <- sqldf(c("update batch_merged set winning = 'het' where Heterophily_Count = Agents_Count", "select * from batch_merged"))
batch_merged <- sqldf(c("update batch_merged set winning = 'pre' where Preferential_Count = Agents_Count", "select * from batch_merged"))
winning <- sqldf("select OptionGroup, sum(CASE WHEN winning='hom' THEN 1 ELSE 0 END) as homophily, sum(CASE WHEN winning='het' THEN 1 ELSE 0 END) as heterophily, sum(CASE WHEN winning='pre' THEN 1 ELSE 0 END) as preferential, sum(CASE WHEN winning='mix' THEN 1 ELSE 0 END) as mixed from batch_merged group by OptionGroup")
# print.data.frame(winning)
```

然后我按照以下说明创建报告：

knit2html("raport-partC.Rmd","raport-parcC.html")

我的会话信息：

> library(knitr)
> sessionInfo()
R version 3.1.1 (2014-07-10)
Platform: x86_64-pc-linux-gnu (64-bit)

locale:
 [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C         LC_TIME=C           
 [4] LC_COLLATE=C         LC_MONETARY=C        LC_MESSAGES=C       
 [7] LC_PAPER=C           LC_NAME=C            LC_ADDRESS=C        
[10] LC_TELEPHONE=C       LC_MEASUREMENT=C     LC_IDENTIFICATION=C 

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] knitr_1.9

loaded via a namespace (and not attached):
[1] evaluate_0.5.5 formatR_1.1    stringr_0.6.2  tools_3.1.1

任何想法表示赞赏。谢谢！

Answer 1

根据评论，我应该首先正确格式化我的 R 代码以坚持字符的恒定宽度，而不是在编织之后 - 如果仍然存在任何问题 - 手动编辑我的页面和 CSS.我会尽可能关闭这个问题。谢谢。

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