// -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 8 -*-
//
// DataFrame.cpp: Rcpp R/C++ interface class library -- DataFrame unit tests
//
// Copyright (C) 2012 Dirk Eddelbuettel and Romain Francois
//
// This file is part of Rcpp.
//
// Rcpp is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// Rcpp is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Rcpp.  If not, see <http://www.gnu.org/licenses/>.

#include <Rcpp.h>
using namespace Rcpp ;

// [[Rcpp::export]]
DataFrame FromSEXP( SEXP x){
    DataFrame df(x) ;
    return df;
}

// [[Rcpp::export]]
SEXP index_byName( DataFrame df, std::string s ){
    return df[s];
}

// [[Rcpp::export]]
SEXP index_byPosition( DataFrame df, int i ){
    return df[i];
}
// [[Rcpp::export]]
std::string string_element( DataFrame df ){
    CharacterVector b = df[1];
	std::string s;
	s = b[1];
	return s;
}

// [[Rcpp::export]]
DataFrame createOne(){
    IntegerVector v = IntegerVector::create(1,2,3);
	return DataFrame::create(Named("a")=v);
}

// [[Rcpp::export]]
DataFrame createTwo(){
    IntegerVector v = IntegerVector::create(1,2,3);
	std::vector<std::string> s(3);
	s[0] = "a";
	s[1] = "b";
	s[2] = "c";
	return DataFrame::create(Named("a")=v, Named("b")=s);
}

// [[Rcpp::export]]
DataFrame SlotProxy( S4 o, std::string yy ){
    return DataFrame( o.slot( yy ) ) ;
}

// [[Rcpp::export]]
DataFrame AttributeProxy( List o, std::string y ){
    return DataFrame( o.attr( y )) ;
}

// [[Rcpp::export]]
DataFrame createTwoStringsAsFactors(){
    IntegerVector v = IntegerVector::create(1,2,3);
	std::vector<std::string> s(3);
	s[0] = "a";
	s[1] = "b";
	s[2] = "c";
	return DataFrame::create(
		_["a"] = v,
		_["b"] = s,
		_["stringsAsFactors"] = false );
}

// [[Rcpp::export]]
int DataFrame_nrows( DataFrame df){
    return df.nrows() ;
}