/// <summary>
/// Executes the function. Match the function arguments by name.
/// </summary>
/// <param name="argNames">The names of the arguments. These can be empty strings for unnamed function arguments</param>
/// <param name="args">The arguments passed to the function</param>
/// <returns></returns>
protected SymbolicExpression InvokeViaPairlist(string[] argNames, SymbolicExpression[] args)
{
var names = new CharacterVector(Engine, argNames);
var arguments = new GenericVector(Engine, args);
arguments.SetNames(names);
var argPairList = arguments.ToPairlist();
//IntPtr newEnvironment = Engine.GetFunction<Rf_allocSExp>()(SymbolicExpressionType.Environment);
//IntPtr result = Engine.GetFunction<Rf_applyClosure>()(Body.DangerousGetHandle(), handle,
// argPairList.DangerousGetHandle(),
// Environment.DangerousGetHandle(), newEnvironment);
return(createCallAndEvaluate(argPairList.DangerousGetHandle()));
}
