Can I execute R code files from within C#?

Question

I have an R source file.

I want to execute the code in that file within my C# app.

The .R file has a function that looks like this:

How can I execute the .R file from my console app and pass in the parameters for the function?

Given your specific example you seem to be dealing with a Shiny app. There’s probably a simpler way of specifically invoking Shiny apps from C# than there is for generic R code. That said, there’s the “R.NET” library, which does pretty much exactly what you want. — Konrad Rudolph
– Konrad Rudolph, Commented Sep 25, 2018 at 15:44

OMANSAK · Accepted Answer · 2018-09-25 15:48:36Z

1

You can use rdotnet(R.NET)

R.NET enables .NET Framework to collaborate with R statistical computing. R.NET requires .NET Framework 4 and native DLLs installed with R environment. You need no other extra installations. Enjoy statistics and programming in your special language with R.

https://archive.codeplex.com/?p=rdotnet

        REngine.SetEnvironmentVariables();
        REngine engine = REngine.GetInstance();
        engine.Initialize();
        //string path = "\HelloWorld.r";
        //engine.Evaluate("source('" + path + "')");
        var x = engine.Evaluate("x <- 1 + 2");

answered Sep 25, 2018 at 15:48

OMANSAK

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fourwhey · Accepted Answer · 2018-09-25 15:54:00Z

0

You can invoke the script file with your application.

http://jmp75.github.io/rdotnet/

engine.Evaluate("source('c:/src/path/to/myscript.r')");

edited Sep 25, 2018 at 15:54

answered Sep 25, 2018 at 15:47

fourwhey

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