CODEWITHSUNDEEP
c#listaverage
Jesse Knott
Jesse Knott

Reputation: 335

How to get average occurrences of string in list

I am trying to get an average of occurrences of a string in a list. Basically I am trying to get the most common occurring string in a list of about 4 options. So for instance in this example

List<string> lMyList = new List<string>();
lMyList.Add("One");
lMyList.Add("One");
lMyList.Add("Two");
lMyList.Add("Two");
lMyList.Add("Two");
lMyList.Add("Three");
lMyList.Add("Three");

I want to get "Two" returned to me...

Any ideas?

Upvotes: 2

Views: 1336

Answers (3)

Saeed Amiri
Saeed Amiri

Reputation: 22555

for finding average do:

list.GroupBy(x => x).Average(x=>x.Count())

for finding max do:

var max = groups.OrderbyDescending(x=>x.Count()).FirstOrDefault();

Upvotes: 2

hspain
hspain

Reputation: 17568

string most = lMyList.GroupBy(x => x)
        .Select(g => new {Value = g.Key, Count = g.Count()})
        .OrderByDescending(x=>x.Count).First();

Upvotes: 3

SLaks
SLaks

Reputation: 887469

You can use LINQ:

list.GroupBy(s => s).OrderByDescending(g => g.Count()).First()

Upvotes: 4

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