如何使用R-Apache输出多个图形

Question

Below is my R code for graphing a function using quantmod, However the limit of this is that i can output only one graph. 以下是我的使用quantmod绘制函数图形的R代码，但是这样做的局限性是我只能输出一个图形。 Is there a way to have your function output more than one graph, Say by setting content to text/html and somehow rendering multiple graphs using that? 有没有一种方法可以让您的函数输出多个图形，比如说将内容设置为text/html并以某种方式呈现多个图形？ Can you explain to me how to do that? 你能告诉我怎么做吗？

tickergraph = function()
{
setContentType ("image/png")
temp <- tempfile ()
png (temp, type="cairo")
ticker <- toupper(POST$t);
getSymbols(ticker)
chartSeries(eval(parse(text=ticker)))
dev.off ()
sendBin (readBin (temp, 'raw', n=file.info(temp)$size))
unlink (temp)
}

if(!is.null(POST$t))
{
tickergraph()
print(POST)
}

print("Cannot Plot when some of the values are NULL")

Answer 1

One way to solve this is to make a HTML-file that has all your graphs as img's such as: 解决此问题的一种方法是制作一个HTML文件，其中将所有图形作为img，例如：

<html><body>
<img src="firstgraph.r" /><br />
<img src="secondgraph.r" /><br />
…
</body></html>

then have firstgraph.r be something similar to the code you posted above (ie something that outputs image/png and secondgraph.r output another image/png with your second graph and so on. 然后让firstgraph.r与您上面发布的代码类似（即，输出image / png的东西和secondgraph.r与第二张图一起输出另一个image / png ，依此类推。

That will render a page which in turn loads all your images (which then will be generated on request). 那将呈现一个页面，该页面反过来加载您的所有图像（然后将根据请求生成）。

The other (more typical R-solution) would be to create a paneled graph, with all your graphs joined into one image (for instance through par(mfrows=c(2,1)) for a 2-by-1 graph). 另一个（更典型的R解决方案）是创建一个面板图形，将所有图形都合并到一个图像中（例如，通过par（mfrows = c（2,1）生成2×1图形）。

如何使用R-Apache输出多个图形

问题描述

1 个解决方案

解决方案1
0 2012-06-27 23:02:34

如何使用R-Apache输出多个图形

问题描述

1 个解决方案

解决方案1 0 2012-06-27 23:02:34

解决方案1
0 2012-06-27 23:02:34