Re: [R] Calling R functions into C# or C++

2014-02-15 Thread Yuvaraj 
Hi,

In my case I don't have any static data to be written in the .r file. 

 I need to retrieve the data from my Database. 
 later send the data and the .r script to R engine and do the execution.



--
View this message in context: 
http://r.789695.n4.nabble.com/Calling-R-functions-into-C-or-C-tp904267p4685379.html
Sent from the R help mailing list archive at Nabble.com.

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Re: [R] Calling R functions into C# or C++

2010-03-30 Thread Fayssal El Moufatich 

The zip file actually works fine for me. Anyhow, here is the code snippet
that you need:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Interop.STATCONNECTORSRVLib;

namespace RFromCsharp
{
  class RConnector
  {

private StatConnectorClass rdcom = null;
private string rcmd;

public StatConnectorClass RConnection { 
  get
  {
return rdcom;
  }
  set
  {
rdcom = value;
  } 
}

private bool initR()
{
  try
  {
rdcom = new StatConnectorClass();
rdcom.Init(R);
return true;
  }
  catch(Exception e)
  {
string errmsg = R Init failed:  + rdcom.GetErrorText() +  Other:
 +e.Message.ToString();
Console.WriteLine(errmsg);
return false;
  }
}

private bool loadR(string table, string filename, bool stripwhite, bool
header, string separator)
{
  try
  {
rcmd = table.ToString() + -read.delim(' + filename.ToString() +
',strip.white= + stripwhite.ToString().ToUpper() + ,header= +
header.ToString().ToUpper() + ,sep=' + separator.ToString() + ');
rdcom.EvaluateNoReturn(rcmd);
return true;
  }
  catch(Exception e)
  {
string errmsg = rcmd.ToString() +   + rdcom.GetErrorText() + 
Other: + e.Message.ToString();
Console.WriteLine(errmsg);
return false;
  }
}

private bool closeR()
{
  try
  {
rcmd = graphics.off();
rdcom.EvaluateNoReturn(rcmd);
rcmd = rm(list=ls(all=TRUE));
rdcom.EvaluateNoReturn(rcmd);
rdcom.Close();
return true;
  }
  catch(Exception e)
  {
string errmsg = R Close failed:  + rdcom.GetErrorText() +  Other:
 +
e.Message.ToString();
Console.WriteLine(errmsg);
return false;
  }
}

static void Main(string[] args)
{
  RConnector conn = new RConnector();

  // Initialize the instance to be used with R
  conn.initR();

  // create an R variable named abc and assign it the value of 5
  conn.RConnection.SetSymbol(abc, 5);

  // Retrieve the value of the R variable named abc and assign that
value to the F# value valueForabc
  var valueForabc = conn.RConnection.GetSymbol(abc);

  // Evaluate an expression in R and assign that value to an F# value
aTestEvaluation
  var aTestEvaluation = conn.RConnection.Evaluate(8 * sin(4));

  // Close the R connection
  conn.closeR();

  Console.BackgroundColor = ConsoleColor.Gray;
  Console.ForegroundColor = ConsoleColor.Blue;
  Console.WriteLine(Value of abc: + valueForabc);
  Console.WriteLine(Value of 8 * sin(4): + aTestEvaluation);
  Console.WriteLine(Press any key to continue ...);
  Console.ReadKey();
  //-
}
  }
}

You would also need to reference the Interop.STATCONNECTORSRVLib.dll
assembly. Here is snapshot of my references list:
http://n4.nabble.com/file/n1744914/RFromCsharpReferences.png 

Best regards,
Fayssal El Moufatich
-- 
View this message in context: 
http://n4.nabble.com/Calling-R-functions-into-C-or-C-tp904267p1744914.html
Sent from the R help mailing list archive at Nabble.com.

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Re: [R] Calling R functions into C# or C++

2010-03-23 Thread ManInMoon 

Fayssal,

This zip file appears to be corrupted - do you have another version?
-- 
View this message in context: 
http://n4.nabble.com/Calling-R-functions-into-C-or-C-tp904267p1679002.html
Sent from the R help mailing list archive at Nabble.com.

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Re: [R] Calling R functions into C# or C++

2009-10-01 Thread fayssal 

Hi,

It is possible to call R functions from .NET by using a .NET wrapper over
the R (D)Com server.  http://www.nabble.com/file/p25682136/RFromCsharp.zip
Attached  is a sample C# project that shows how to call R from C#. 

Best Regards,
Fayssal El Moufatich

http://www.nabble.com/file/p25682136/RFromCsharp.zip RFromCsharp.zip 
 

Shubha Vishwanath Karanth wrote:
 
 Hi R,
 
  
 
 I have a request...
 
  
 
 Can I call R functions/routines from C# or C++? If so, how do I do this?
 Do I need to have some knowledge on DLL to do this?
 
  
 
  
 
 Thanks a lot for your help,
 
 Shubha
 
 Shubha Karanth | Amba Research
 
 Ph +91 80 3980 8031 | Mob +91 94 4886 4510 
 
 Bangalore * Colombo * London * New York * San José * Singapore *
 www.ambaresearch.com
 
  
 
 This e-mail may contain confidential and/or privileged i...{{dropped:13}}
 
 
 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide
 http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.
 
 

-- 
View this message in context: 
http://www.nabble.com/Calling-R-functions-into-C--or-C%2B%2B-tp17998762p25682136.html
Sent from the R help mailing list archive at Nabble.com.

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

[R] Calling R functions into C# or C++

2008-06-19 Thread Shubha Vishwanath Karanth 
Hi R,

 

I have a request...

 

Can I call R functions/routines from C# or C++? If so, how do I do this? Do I 
need to have some knowledge on DLL to do this?

 

 

Thanks a lot for your help,

Shubha

Shubha Karanth | Amba Research

Ph +91 80 3980 8031 | Mob +91 94 4886 4510 

Bangalore * Colombo * London * New York * San José * Singapore * 
www.ambaresearch.com

 

This e-mail may contain confidential and/or privileged i...{{dropped:13}}

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Re: [R] Calling R functions into C# or C++

2008-06-19 Thread Dieter Menne 
Shubha Vishwanath Karanth shubhak at ambaresearch.com writes:

 Can I call R functions/routines from C# or C++? If so, how do I do this? 
 Do I need to have some knowledge on DLL to do this?
 

You can, using R(DCOM) which is installed by the Windows installer. There 
is a separate list to discuss this, but it is mainly focused on Excel 
interaction.

http://mailman.csd.univie.ac.at/mailman/listinfo/rcom-l

When you select the full install of R(D)COM, you also get an MFC/C++ sample.
C#/.NET works, I use it heavily, and you can generate nice interfaces for R 
with it. You must reference StatConnectorClntLib, StatconnectorCommonLib,
StatConnectorSRVLib, and you get an implicit reference to
AxStatConnectorClntLib. No explicitely generated DLL is required with 
Visual Studio, but don't expect this to work easily when you fear DLL 
creation.

There is a major problem with Data Excecution Prevention and installation of 
C# procedure calling R(D)COM with Vista which I only could get around 
by disabling DEP.

Dieter

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.