是否可以在查看器窗格中查看 HTML 表格? [英] Is it possible to view an HTML table in the viewer pane?

问题描述

我想知道是否有任何功能可以轻松地在 RStudio 的查看器窗格中可视化 html 对象.例如，我想知道是否可以在查看器窗格中查看 html 表.

I would like to know if there is any function which makes it easy to visualize an html object in the RStudio's viewer pane. For instance, I would like to know if it would be possible to view an html table in the viewer pane.

library("Quandl")
library("knitr")
df  <-  Quandl("FBI_UCR/USCRIME_TYPE_VIOLENTCRIMERATE")
kable(head(df[,1:9]), format = 'html', table.attr = "class=nofluid")

推荐答案

这是在 RStudio 中执行此操作的快速方法

Here is a quick way to do this in RStudio

view_kable <- function(x, ...){
  tab <- paste(capture.output(kable(x, ...)), collapse = '\n')
  tf <- tempfile(fileext = ".html")
  writeLines(tab, tf)
  rstudio::viewer(tf)
}
view_kable(head(df[,1:9]), format = 'html', table.attr = "class=nofluid")

如果kable 函数可以返回kable 类的对象，那么可以将view_kable 重命名为print.kable 在这种情况下，只需调用 kable 函数即可在查看器中打开表格.如果您认为这很有用，请继续在 knitr github 页面上提交功能请求.

If the kable function can return an object of class kable, then one could rename view_kable as print.kable in which case merely calling the kable function would open the table in the viewer. If you think this is useful, please go ahead and file a feature request on the knitr github page.

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