Also I tried out your method, it returns the same error. Another thing, If I
change the top line in rscript.sh to R --slave it just gives me a neat
output. I am not sure why running the shell script directly from within the
same folder is working where as from php it is not recognising R command.
On Wed, Dec 2, 2009 at 3:47 PM, Amrit Nandan <amrit.nan...@gmail.com> wrote:
> RServe looks exciting but the problem is that I am not sure whether I would
> be allowed to install anything on the linux server on which I am working.
>
>
> On Wed, Dec 2, 2009 at 3:40 PM, Romain Francois <
> romain.franc...@dbmail.com> wrote:
>
>> On 12/02/2009 10:43 AM, Amrit Nandan wrote:
>>
>>> I tried calling R from a shell script and it works. This is an example
>>> file rscript.sh
>>>
>>> R --no-save << EOT
>>> x<-2*pi
>>> print(cbind(x,sin(x)))
>>> quit("no")
>>> EOT
>>>
>>> This works perfectly on the Linux machine in which I have logged in via
>>> SSH using the command ("./rscript.sh")
>>>
>>> I tried running this command using php
>>>
>>> <html>
>>> <?php
>>>
>>> $output = array();
>>> $$retval = 0;
>>> $a = shell_exec('./rscript.sh'." 2>&1");
>>> //print phpinfo();
>>> print $a;
>>>
>>> ?>
>>> </html>
>>>
>>> this does not work and gives me this error:
>>>
>>> ./rscript.sh: line 1: R: command not found
>>>
>>
>> Maybe shell_exec('sh ./rscript.sh 2>&1' ) instead, maybe you need to have
>> the full path of R.
>>
>> With this design, you are going to start a new R session each time you
>> want anything to be computed, and you are going to have to format the result
>> of the R code as a string and parse this string back in php.
>>
>>
>>
>> You really should look into Rserve and its new php client, which I think
>> will solve all of these problems at once.
>>
>> Just download the version 0.6-1 from here :
>> http://www.rforge.net/Rserve/files/
>>
>> $ wget http://www.rforge.net/src/contrib/Rserve_0.6-1.tar.gz
>> # R CMD INSTALL Rserve_0.6-1.tar.gz
>>
>> start the server
>>
>> $ R CMD Rserve
>>
>> grab the php client, and include it into your php application
>>
>> $ tar zxvf Rserve_0.6-1.tar.gz
>> $ less Rserve/src/client/php/simple.php
>>
>> If you try this route, be aware that the php client is very new. also you
>> probably want to post questions regarding it on this mailing list :
>> http://mailman.rz.uni-augsburg.de/mailman/listinfo/stats-rosuda-devel
>>
>> Romain
>>
>>
>> Anybody familiar with this?
>>>
>>> On Tue, Dec 1, 2009 at 5:35 PM, Romain Francois
>>> <romain.franc...@dbmail.com <mailto:romain.franc...@dbmail.com>> wrote:
>>>
>>> On 12/01/2009 12:48 PM, Hrishi Mittal wrote:
>>>
>>> Hi Amrit,
>>>
>>> I believe you can you use the PHP system command to call Rscript
>>> or R CMD. I
>>> don't know much PHP but this page might be useful -
>>> http://php.net/manual/en/function.system.php.
>>>
>>> You might also want to look at rapache -
>>> http://biostat.mc.vanderbilt.edu/rapache/
>>>
>>> Good luck with your project and do post a link to your webpage
>>> when you get
>>> it running.
>>>
>>>
>>> There is also a simple php client to Rserve in the next version of
>>> Rserve. http://www.rforge.net/Rserve/index.html
>>>
>>
>> --
>> Romain Francois
>> Professional R Enthusiast
>> +33(0) 6 28 91 30 30
>> http://romainfrancois.blog.free.fr
>> |- http://tr.im/FtUu : new package : highlight
>> |- http://tr.im/EAD5 : LondonR slides
>> `- http://tr.im/BcPw : celebrating R commit #50000
>>
>>
>
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