public static double Mean <T>(this SumList <T> list)
{
if (list == null || list.Count == 0)
{
return(0.0);
}
return(list.Sum() / list.Count);
}
public static T Mode <T>(this SumList <T> list)
{
if (list == null || list.Count == 0)
{
return(default(T));
}
return((from item in list
group item by item into grouped
orderby grouped.Count() descending
select grouped.Key).First());
}
public SumListEnumerator(SumList <T> list)
{
_items = list;
}
static void Main(string[] args)
{
Console.WriteLine("===============================");
Console.WriteLine(" SUMLIST TESTS ");
Console.WriteLine("===============================");
SumList <int> a = new SumList <int>();
SumList <int> b = new SumList <int>(new int[] { 1, 2, 3, 4 });
SumList <double> e = new SumList <double>(4);
a.Add(1);
a.Add(2);
a.Add(3);
a.Add(4);
e.Add(1.1);
e.Add(2.2);
e.Add(3.3);
e.Add(4.4);
Console.WriteLine("List: {0}", a);
Console.WriteLine("Size = {0}", a.Capacity);
Console.WriteLine("Avg = {0}", a.Count);
Console.WriteLine("Sum = {0}", a.Sum());
Console.WriteLine("Mean = {0}", a.Mean <int>());
Console.WriteLine("Mode = {0}", a.Mode <int>());
Console.WriteLine("3rd element = {0}", a[2]);
Console.WriteLine("Cast to integer: {0}", (int)a);
if (a.Equals(b))
{
Console.WriteLine("a and b are equal");
}
else
{
Console.WriteLine("a and b are NOT equal");
}
foreach (object i in a)
{
foreach (object j in a)
{
Console.Write("{0}-{1},", i, j);
}
Console.WriteLine("");
}
Console.WriteLine("\r\nNon-numeric contents:\r\n");
var list = new SumList <string> {
"one fish", "two fish", "red fish", "two fish", "blue fish"
};
Console.WriteLine("Capacity = {0}\nCount = {1}\nSum = {2}", list.Capacity, list.Count, list.Sum());
Console.WriteLine("Mean = {0}\nMode = {1}", list.Mean(), list.Mode());
Console.WriteLine(list);
Console.WriteLine("\r\n");
Console.WriteLine("===============================");
Console.WriteLine(" SORTEDSUMLIST TESTS ");
Console.WriteLine("===============================");
var descendingNumbers = Enumerable.Range(1, 10).OrderByDescending(x => x);
var sortedList = new SortedSumList <int>(descendingNumbers);
Console.WriteLine("Capacity = {0}\nCount = {1}\nSum = {2}", sortedList.Capacity, sortedList.Count, sortedList.Sum());
Console.WriteLine("Mean = {0}\nMode = {1}\nMedian = {2}", sortedList.Mean(), sortedList.Mode(), sortedList.Median());
Console.WriteLine(sortedList);
Console.WriteLine("\r\n");
foreach (var n in descendingNumbers)
{
sortedList.Add(n);
sortedList.Add(5);
}
Console.WriteLine("Capacity = {0}\nCount = {1}\nSum = {2}", sortedList.Capacity, sortedList.Count, sortedList.Sum());
Console.WriteLine("Mean = {0}\nMode = {1}\nMedian = {2}", sortedList.Mean(), sortedList.Mode(), sortedList.Median());
Console.WriteLine(sortedList);
// Compare SumList and SumSortedList
SumList <int> d = new SumList <int>(new int[] { 4, 3, 2, 1 });
SortedSumList <int> c = new SortedSumList <int>(new int[] { 3, 4, 2, 1 });
if (d == c)
{
Console.WriteLine("The two lists are equal"); // This
}
else
{
Console.WriteLine("The two lists are NOT equal");
}
d.Add(0);
if (c == d)
{
Console.WriteLine("The two lists are equal");
}
else
{
Console.WriteLine("The two lists are NOT equal"); // This
}
Console.ReadLine();
}