通过 rJava/JRI 在处理中使用 R？
是否可以通过 rJava/JRI 在处理中运行 R？如果我在网络上部署了一个处理应用程序，客户的系统上是否需要 R？
我希望创建一个可以部署在网络上的交互式信息仪表板。看来处理可能是我对交互/网络部分的最佳选择。不幸的是，看起来内置的数学/统计函数并不多。而且也没有任何用于绘制数据的库。
我已经使用 R 和 gpplot2 几个月了，我对它操作和绘制数据的轻松程度感到兴奋（惊讶）。
所以我现在想知道是否可以两全其美并通过处理小程序运行 R。
来自 JRI 网站：
JRI 是一个 Java/R 接口，它允许在 Java 中运行 R 应用程序作为单线程。 基本上它加载R动态库 转换为 Java 并为 R 提供 Java API 功能。它支持简单的 调用 R 函数和完整的 运行 REPL。
从某种意义上说，JRI 是 rJava 的反面 两者都可以结合起来（即你可以 在 JRI 中运行回调的 R 代码 通过 rJava 到 JVM）。 JGR项目 充分利用 JRI 和 rJava 提供完整的 Java GUI R。
JRI 使用本机代码，但它支持 Sun 的 Java（或 兼容）可用，包括 Windows、Mac OS X、Sun 和 Linux（均 32 位和 64 位）。
谢谢你的建议:)
Is it possible to run R in Processing through rJava/JRI? If I deployed a Processing app on the web, would the client need R on their system?
I'm looking to create an interactive information dashboard that I can deploy on the web. It seems that Processing is probably my best bet for the interactive/web part of things. Unfortunately, it doesn't look like there are many math/stats functions built-in. And there aren't any libraries for plotting data either.
I've been using R and gpplot2 for a few months and am thrilled (amazed) at how easily it manipulates and plots data.
So I'm wondering now if can get the best of both worlds and run R through a Processing applet.
From the JRI website:
JRI is a Java/R Interface, which allows to run R inside Java
applications as a single thread.
Basically it loads R dynamic library
into Java and provides a Java API to R
functionality. It supports both simple
calls to R functions and a full
running REPL.In a sense JRI is the inverse of rJava
and both can be combined (i.e. you can
run R code inside JRI that calls back
to the JVM via rJava). The JGR project
makes the full use of both JRI and
rJava to provide a full Java GUI for
R.JRI uses native code, but it supports
all platforms where Sun's Java (or
compatible) is available, including
Windows, Mac OS X, Sun and Linux (both
32-bit and 64-bit).
Thanks for the advice :)
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您可以在Processing中编写Java代码（或访问Jar文件）吗？如果是这样，那么你绝对可以做到这一点。 JRI 为 R 提供了一个低级接口，我还没有遇到过 R 中无法通过其函数运行的东西。
有关如何使用它的简单示例，请参阅此相关问题。
除了看过几次之外，我还没有真正使用过Processing，但据我了解，它有自己的语言。
Can you write Java code (or access a Jar file) in Processing? If so, then you can absolutely do this. JRI provides a low level interface to R and I have yet to encounter something in R that couldn't be run through its functions.
See this related question for simple example of how to use it.
I haven't really used Processing other than to look at it a few times, but it was my understanding that it had its own language.
去年，我沿着这些思路编写了一些示例代码：
http://illspoke.net/R4P.html
最好的，
布莱恩
I wrote some example code along these lines last year:
http://illposed.net/R4P.html
Best,
Bryan
另一种选择是使用 Clojure 的 Incanter 库。它是 Clojure 中的一个类似 R 的库，由于（纯 java）并行 Colt 数字库，速度相当快，内置 JFreeChart 支持快速图表，以及通过 Clojure 使用处理的包装器。
您可以将生成的应用程序作为普通（尽管可能相当大）的 Java Applet 推送到网络上。
Another option is using the Incanter library for Clojure. It's an R-like library in Clojure, pretty fast due to the (pure java) Parallel Colt numerics library, with built-in JFreeChart support for quick charting as well as a wrapper for using Processing through Clojure.
You could just push the resulting app to the web as a normal (though probably pretty big) Java Applet.