Print Sublist with Linq - Sum, Average Sublist with Linq

[PaulMohn]

ref. https://forum.ninjatrader.com/forum/...-double-method

using System;
using System.Collections.Generic;
using System.Linq;
                    
public class Program
{
    public static void Main()
    {
        List<int> duplList = new List<int> {1, 2, 3, 4, 5, 6, 7};

        Console.WriteLine(" ");
        Console.WriteLine("Whole List,tLinq Printed: ");
        Console.WriteLine(" ");
        duplList.ForEach(a =>
        {
            Console.WriteLine(a); // {1, 2, 3} -> 6
        });
        
        Console.WriteLine(" ");
        Console.WriteLine("Sub List, Linq Printed: ");
        Console.WriteLine(" ");
        duplList.Where(s => s > (duplList.Count-6) && s <= (duplList.Count))
            .ToList()
            .ForEach(s => Console.WriteLine(s));
        
        Console.WriteLine(" ");
        Console.WriteLine("Sub List, Linq Summed: ");
        Console.WriteLine(" ");
        Console.WriteLine(duplList.Take( (duplList.Count-6)..(duplList.Count) ).Sum()); // {1, 2, 3} -> 6

        Console.WriteLine(" ");
        Console.WriteLine("Sub List, Linq Averaged: ");
        Console.WriteLine(" ");
        Console.WriteLine(duplList.Take( (duplList.Count-6)..(duplList.Count) ).Average()); // {1, 2, 3} -> 6
    }
}&#8203; 

Output:

Whole List,tLinq Printed:

1
2
3
4
5
6
7

Sub List, Linq Printed:

2
3
4
5
6
7

Sub List, Linq Summed:

27

Sub List, Linq Averaged:

4.5

Tested ok:

https://dotnetfiddle.net/APBLP8

refs.
How to select values within a provided index range from a List using LINQ

https://stackoverflow.com/a/70392551/10789707

Output a list/other data structure using linq query

https://stackoverflow.com/a/6606324/10789707

Print array with LINQ
https://stackoverflow.com/a/35800748/10789707

LINQ Methods

https://www.c-sharpcorner.com/article/linq-methods/

Every Single LINQ Extension Method With Examples | .NET & C# Essentials

https://www.youtube.com/watch?v=7-P6Mxl5elg

[PaulMohn]

ref. https://forum.ninjatrader.com/forum/...-double-method

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

public class Program
{
public static void Main()
{
List<int> duplList = new List<int> {1, 2, 3, 4, 5, 6, 7};

Console.WriteLine(" ");
Console.WriteLine("Whole List,tLinq Printed: ");
Console.WriteLine(" ");
duplList.ForEach(a =>
{
Console.WriteLine(a); // {1, 2, 3} -> 6
});

Console.WriteLine(" ");
Console.WriteLine("Sub List, Linq Printed: ");
Console.WriteLine(" ");
duplList.Where(s => s > (duplList.Count-6) && s <= (duplList.Count))
.ToList()
.ForEach(s => Console.WriteLine(s));

Console.WriteLine(" ");
Console.WriteLine("Sub List, Linq Summed: ");
Console.WriteLine(" ");
Console.WriteLine(duplList.Take( (duplList.Count-6)..(duplList.Count) ).Sum()); // {1, 2, 3} -> 6

Console.WriteLine(" ");
Console.WriteLine("Sub List, Linq Averaged: ");
Console.WriteLine(" ");
Console.WriteLine(duplList.Take( (duplList.Count-6)..(duplList.Count) ).Average()); // {1, 2, 3} -> 6
}
}&#8203; 

Output:



Tested ok:

https://dotnetfiddle.net/APBLP8

refs.
How to select values within a provided index range from a List using LINQ

https://stackoverflow.com/a/70392551/10789707

Output a list/other data structure using linq query

https://stackoverflow.com/a/6606324/10789707

Print array with LINQ
https://stackoverflow.com/a/35800748/10789707

LINQ Methods

https://www.c-sharpcorner.com/article/linq-methods/

Every Single LINQ Extension Method With Examples | .NET & C# Essentials
https://www.youtube.com/watch?v=7-P6Mxl5elg

.Net 4.8 GetRange()

https://forum.ninjatrader.com/forum/ninjatrader-8/strategy-development/110160-cs1001-identifier-expected?p=1318844#post1318844

[PaulMohn]

.Net 4.8 GetRange() .ForEach(s => Print(s));

using System;
using System.Collections.Generic;
using System.Linq;
                    
public class Program
{
    public static void Main()
    {
        List<int> intsList = new List<int> {1, 2, 3, 4, 5, 6, 7};

        Console.WriteLine(" ");
        Console.WriteLine("Whole List, Linq Printed: ");
        Console.WriteLine(" ");
        intsList.ForEach(a =>
        {
            Console.WriteLine(a); // {1, 2, 3} -> 6
        });
        
        Console.WriteLine(" ");
        Console.WriteLine(".Net 4.8 Sub List, Linq Printed: ");
        Console.WriteLine(" ");
        //duplList.Where(s => s > (duplList.Count-6) && s <= (duplList.Count))
            //.ToList()
            //.ForEach(s => Console.WriteLine(s));
        intsList.GetRange((intsList.Count-6),6)
            .ToList()
            .ForEach(s => Console.WriteLine(s));
        
        Console.WriteLine(" ");
        Console.WriteLine(".Net 4.8 Sub List, Linq Summed: ");
        Console.WriteLine(" ");
        //Console.WriteLine(duplList.Take( (duplList.Count-6)..(duplList.Count) ).Sum()); // {1, 2, 3} -> 6
        Console.WriteLine(intsList.GetRange( (intsList.Count-6),(6) ).Sum());

        Console.WriteLine(" ");
        Console.WriteLine(".Net 4.8 Sub List, Linq Averaged: ");
        Console.WriteLine(" ");
        //Console.WriteLine(duplList.Take( (duplList.Count-6)..(duplList.Count) ).Average()); // {1, 2, 3} -> 6
        Console.WriteLine(intsList.GetRange( (intsList.Count-6),(6) ).Average());
    }
}​

Output:

Whole List, Linq Printed:

1
2
3
4
5
6
7

.Net 4.8 Sub List, Linq Printed:

2
3
4
5
6
7

.Net 4.8 Sub List, Linq Summed:

27

.Net 4.8 Sub List, Linq Averaged:

4.5

Tested ok:
https://dotnetfiddle.net/iduIzT