我有一个数据帧,其中的人口统计信息分为16组.我基本上需要遍历这些组并为每个组创建一个PDF页面.我已经尝试过使用Rhtml,但到目前为止,我只能生成一页.有没有使用模板的方法?
I have a data frame that has demographic information split into 16 groups. I basically need to iterate over these groups and create a PDF page for each group. I've tried using Rhtml but so far I can only get one page to generate. Is there a way to use templates or something?
推荐答案当需要PDF输出时,为什么不直接将.Rnw编译为.pdf?
When you need PDF output, why don't you directly compile .Rnw to .pdf?
这里是使用iris数据集的示例.它将每个物种的前几行打印在新页面上:
Here an example using the iris dataset. It prints the first few rows of each species on a new page:
\documentclass{article} \begin{document} <<results = "asis", echo = FALSE>>= library(xtable) newpage <- "" invisible(lapply(unique(iris$Species), FUN = function(x) { cat(newpage) cat(sprintf("\\section{%s}", x)) current <- head(subset(x = iris, subset = Species == x)) print(xtable(current)) newpage <<- "\\clearpage" })) @ \end{document}我还使用了xtable来轻松获得格式正确的表.输出如下所示:
I additionally used xtable to easily get a nicely formatted table. The output looks like this:
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使用Rhtml创建PDF并遍历数据框
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