如何在Jupyter（R）中渲染LaTeX / HTML？

I just started using Jupyter with R, and I'm wondering if there's a good way to display HTML or LaTeX output.

我刚开始使用Jupyter和R，我想知道是否有一种很好的方式来显示HTML或LaTeX输出。

Here's some example code that I wish worked:

这是我希望工作的一些示例代码：

library(xtable)
x <- runif(500, 1, 50)
y <- x + runif(500, -5, 5)
model <- lm(y~x)
print(xtable(model), type = 'html')

Instead of rendering the HTML, it just displays it as plaintext. Is there any way to change that behavior?

它只是将其显示为纯文本，而不是呈现HTML。有没有办法改变这种行为？

4 个解决方案

#1

A combination of repr (for setting options) and IRdisplay will work for HTML. Others may know about latex.

repr（用于设置选项）和IRdisplay的组合将适用于HTML。其他人可能知道乳胶。

# Cell 1 ------------------------------------------------------------------

library(xtable)
library(IRdisplay)
library(repr)

data(tli)
tli.table <- xtable(tli[1:20, ])
digits(tli.table) <- matrix( 0:4, nrow = 20, ncol = ncol(tli)+1 )

options(repr.vector.quote=FALSE)

display_html(paste(capture.output(print(head(tli.table), type = 'html')), collapse="", sep=""))


# Cell 2 ------------------------------------------------------------------

display_html("<span style='color:red; float:right'>hello</span>")

# Cell 3 ------------------------------------------------------------------

display_markdown("[this](http://google.com)")

# Cell 4 ------------------------------------------------------------------

display_png(file="shovel-512.png")

# Cell 5 ------------------------------------------------------------------

display_html("<table style='width:20%;border:1px solid blue'><tr><td style='text-align:right'>cell 1</td></tr></table>")

#2

I found a simpler answer, for the initial, simple use case.

对于最初的简单用例，我找到了一个更简单的答案。

If you call xtable without wrapping it in a call to print, then it totally works. E.g.,

如果你调用xtable而不将它包装在打印调用中，那么它完全有效。例如。，

library(xtable)
data(cars)
model <- lm(speed ~ ., data = cars)
xtable(model)

#3

In Jupyter, you can use Markdown. Just be sure to change the Jupyter cell from a code cell to a Markdown cell. Once you have done this you can simply place a double dollar sign ("$$") before and after the LaTex you have. Then run the cell.

在Jupyter中，您可以使用Markdown。只需确保将Jupyter单元格从代码单元格更改为Markdown单元格。完成此操作后，您只需在LaTex之前和之后放置一个双美元符号（“$$”）即可。然后运行单元格。

The steps are as follows: 1. Create a Markdown cell. 2. $$ some LaTex $$ 3. Press play button within Jupyter.

步骤如下：1。创建Markdown单元格。 2. $$一些LaTex $$ 3.按Jupyter中的播放按钮。

#4

Defining the following function in the session will display objects returned by xtable as html generated by xtable:

在会话中定义以下函数将显示xtable返回的对象作为xtable生成的html：

repr_html.xtable <- function(obj, ...){
    paste(capture.output(print(obj, type = 'html')), collapse="", sep="")
}

library(xtable)
data(cars)
model <- lm(speed ~ ., data = cars)
xtable(model)

Without the repr_html.xtable function, because the returned object is also of class data.frame, the display system in the kernel will rich display that object (=html table) via repr::repr_html.data.frame.

如果没有repr_html.xtable函数，因为返回的对象也是类data.frame，内核中的显示系统将通过repr :: repr_html.data.frame丰富显示该对象（= html表）。

Just don't print(...) the object :-)

只是不要打印（...）对象:-)

#1