使用R通过PHP [英] Using R through PHP

问题描述

我是R的新手，是Linux（Ubuntu）命令行的新手。我试图在PHP中写一个页面，其中包含一个命令，我想在R中执行，然后将结果返回，以便能够与他们合作。我尝试了下面的代码的变体，但我只得到R欢迎消息作为我的输出：

 <？php 
 
 $ rQuery =\echo 3 + 1; \| / usr / bin / R --no-save; 
 exec（$ rQuery，$ output）; 
 print_r（$ output）; 
 
？> 
 

当我在命令行中手动键入$ rQuery时，结果是我想要的：[1] 4.

我知道我必须缺少一些东西，但我没有能够通过我自己的搜索找出来。

解决方案

几点：




1. -slave 作为选项，它意味着 - no-save 并关闭问候语;

你真正想要的是Jeff Horner优秀的 R-inside-Apache >，请参阅这里了解详情。它可以使用模板框架，如 brew 。最重要的是，Jeff现在为您提供了一个.deb包：use deb http ：//ppa.launchpad.net/jeffreyhorner/rapache/ubuntu lucid main 位于 /etc/apt/sources.list 中。



2. 如果您坚持使用php管道，请考虑 littler 脚本前端Jeff和我写道。它会比R更快启动。

I'm relatively new to R and very new to the Linux (Ubuntu) command line. I'm trying to write a page in PHP that contains a command I would like to execute in R and then pass the results back to be able to work with them. I've tried variations of the code below, but I only get the R welcome message as my output:

<?php

$rQuery = "\"echo 3 + 1;\" | /usr/bin/R --no-save";
exec($rQuery, $output);
print_r($output);

?>

When I manually type $rQuery in the command line the result is what I would expect: [1] 4.
I know I must be missing something towards the end there, but I haven't been able to figure it out through my own searching.

解决方案

Couple of points:

1. You want --slave as the option, it implies --no-save and turns the greeting off; see the manual for more.

2. What you really want is Jeff Horner's excellent R-inside-Apache, see here for more. It can use templating frameworks like brew as well. Best of all, Jeff now provides a .deb package for you: use deb http://ppa.launchpad.net/jeffreyhorner/rapache/ubuntu lucid main in /etc/apt/sources.list.

3. If you insist on piping from php, consider the littler scripting frontend Jeff and I wrote. It will start faster than R.

这篇关于使用R通过PHP的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！