使用knitr从R中编写html

时间:2012-04-28 10:46:26

标签: r reporting knitr

也许我错过了显而易见的事情,但我一直在努力寻找以下示例:我想使用knitr包将R中的分析报告写入html文件。我找到了stitch()函数,但是如果能够更好地控制哪些结果和&情节写入html,哪些不是。原则上我希望能够编写以下代码:

# some dummy code
library(ggplot)
data <- read.table('/Users/mydata', header=TRUE)
model <- lm(Y~X*Y, data)

# write this result to html:
summary(model)

2 个答案:

答案 0 :(得分:8)

我想我不明白你到底缺少什么,但这里是我做过的最小例子。要运行此

library(knitr)
knit("r-report.html")

这个例子。

<HTML>
<HEAD>
  <TITLE>Analyzing Diamonds!</TITLE>
</HEAD>

<BODY>
<H1>Diamonds are everywhere!</H1>

<!--begin.rcode echo=FALSE

## Load libraries, but do not show this
library(ggplot2)
library(plyr)
testData <- rnorm(1)
end.rcode-->

This is an analysis of diamonds, load the data.<p>
<!--begin.rcode echo=TRUE, fig.keep="all"
# Load the data
data(diamonds)
# Preview
head(diamonds)
end.rcode-->

Generate a figure, don't show code <p>
<!--begin.rcode echo=FALSE, fig.align="center", dev="png"
# This code is not shown, but figure will output
qplot(diamonds$color, fill=diamonds$color) + 
  opts(title="A plot title")
end.rcode-->

Show some code, don't output the figure<p>
<!--begin.rcode echo=TRUE, fig.keep="none"
# Show the code for this one, but don't write out the figure
ggplot(diamonds, aes(carat, price, colour=cut)) + 
  geom_point(aes(alpha=0.9))
end.rcode-->


And the value testData: <!--rinline testData --> inside a text block.

</BODY>
</HTML>

答案 1 :(得分:6)

在我的眼中编写HTML比编写模板和knit()更加费力(@dready给出了一个不错的例子)。代码会相当丑陋,你会看到许多“猫”跳来跳去。你可能会得到这样的结论:

sink('test.html') # redirect output to test.html
cat('<h1>First level header</h1>\n')
cat('<pre>')
summary(mtcars)
cat('</pre>\n')
sink()
browseURL('test.html')

无论如何,还有另一个包R2HTML,在这种情况下可能更合适。