i am trying to execute a r script from asp.net page using c# but it's not executing

I have used Rscript ruer but its not working.

public static string SetupPath(string Rversion = "R-3.2.3")
        {
            var oldPath = System.Environment.GetEnvironmentVariable("PATH");
            var rPath = System.Environment.Is64BitProcess ?
            string.Format(@"C:Program FilesRR-3.2.3binx64", Rversion) :
            string.Format(@"C:Program FilesRR-3.2.3bini386", Rversion);

            if (!Directory.Exists(rPath))
                throw new DirectoryNotFoundException(
                  string.Format(" R.dll not found in : {0}", rPath));
            var newPath = string.Format("{0}{1}{2}", rPath,
                                         System.IO.Path.PathSeparator, oldPath);
            System.Environment.SetEnvironmentVariable("PATH", newPath);
            retu newPath.ToString() ;
        }

This button_clcick method calls the rscript ruer. protected void Button1_Click(object sender, EventArgs e) { string s = SetupPath(); string args = ""; string r = @"D:scr1.r"; var RcodeFilePath = string.Format(@"D:scr1.r", "R-3.2.3");

                //string c = RScriptRuer.RunFromCmd(RcodeFilePath, s);
                string c = RScriptRuer.RunFromCmd(r, "rscript.exe");
                Label1.Text = c;
            }