[R] Rapache ( was Developing a web crawler )

[Mike Marchywka]

----------------------------------------
> Subject: Re: [R] Rapache ( was Developing a web crawler )
> From: matt at biostatmatt.com
> To: marchywka at hotmail.com
> CC: r-help at r-project.org
> Date: Sun, 6 Mar 2011 13:51:53 -0500
>
> On Sun, 2011-03-06 at 08:06 -0500, Mike Marchywka wrote:
> >
> >
> > ----------------------------------------
> > > Date: Thu, 3 Mar 2011 13:04:11 -0600
> > > From: Matt.Shotwell at vanderbilt.edu
> > > To: r-help at r-project.org
> > > Subject: Re: [R] Developing a web crawler / R "webkit" or something similar? [off topic]
> > >
> > > On 03/03/2011 08:07 AM, Mike Marchywka wrote:
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >> Date: Thu, 3 Mar 2011 01:22:44 -0800
> > > >> From: antujsrv at gmail.com
> > > >> To: r-help at r-project.org
> > > >>
> Hi Mike,
>
> If you've built and configured RApache, then the difficult "plowing" is
> over :). RApache operates at the top (HTTP) layer of the OSI stack,
> whereas Rserve works at the lower transport/network layer. Hence, the
> scope of Rserve applications is far more general. Extending Rserve to
> operate at the HTTP layer (via PHP) will mean more work.

I finally got back to this and started from scratch on a clean machine.
It took most of the day, on and off, but downloading and building R, apache,
and rapache was relatively easy and info page worked but I had to go
get Cairo and various packages to get graphic demo pages to work.
I'll probably have to play with it a bit to see if I can use
it for anything useful but getting it to run was not too difficult
( I think before I didn't bother to build Apache from source and the failure mode
wasnt real clear ) . 




>
> RApache offers high level functionality, for example, to replace PHP
> with R in web pages. No interface code is necessary. Here's a simple
> "What's The Time?" webpage using RApache and yarr [1] to handle the
> code:
>
> << setContentType("text/html\n\n") >>
> 
> Message body
> <>
> 
>
> Here's a live version: [2]. Interfacing PHP with Rserve in this context
> would be useful if installation of R and/or RApache on the web host were
> prohibited. A PHP/Rserve framework might also be useful in other
> contexts, for example, to extend PHP applications (e.g. WordPress,
> MediaWiki).
>
> Best,
> Matt
>
> [1] http://biostatmatt.com/archives/1000
> [2] http://biostatmatt.com/yarr/time.yarr
>
> >
> > > -Matt
> > >
> > > >
> >
> >
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>
>
>