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

namespace Science.Statistics.BasicStatistics
{
    public class FrequencyTable
    {
        public FrequencyTable()
        {
        }
        private List<double> of = new List<double>();
        public List<double> ObservedFrequency
        {
            get { return of; }
        }
        private List<double> ef = new List<double>();
        public List<double> ExpectedFrequency
        {
            get { return ef; }
        }

        public void Add(double observedFrequency, double expectedFrequency)
        {
            of.Add(observedFrequency);
            ef.Add(expectedFrequency);
        }
        public void Add(int observedFrequency, int expectedFrequency)
        {
            Add((double)observedFrequency, (double) expectedFrequency);
        }
        public override string ToString()
        {
            string res = "";
            for (int i = 0; i < of.Count; i++)
                res += of[i].ToString() + "\t" + ef[i].ToString() + "\r\n";
            return res;
        }
    }
}