How to return the frequent/highest repeated word from a List in C#?

Question

I have got a List<> with 5k words in it.

var abc = new List<ClassName>();

I want to retrieve the frequent/highest repeated word from List<> and return it. Thoughts?

 public class Datum
    {
        public string name { get; set; }
        public string id { get; set; }
        public string pic_large { get; set; }
    }

`GroupBy` by word, `OrderByDescending` by `Count`, get `First` — Dmitry Bychenko, Jan 09 '17 at 12:50

Alex · Accepted Answer · 2017-01-09T12:58:16.093

1

This will get the most popular instance of Datum in your abc List

var mostPopular = abc
  .GroupBy(x => x.name)
  .OrderByDescending(g => g.Count())
  .First();

If you want JUST the name value of the most popular append a Select on the end

var mostPopularName = abc
  .GroupBy(x => x.name)
  .OrderByDescending(g => g.Count())
  .First()
  .Select(x=> x.name);

edited Jan 09 '17 at 12:58

answered Jan 09 '17 at 12:52

Alex

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score 1 · Answer 2 · answered Jan 09 '17 at 12:53

var result = abc
    .GroupBy(x => x.name)
    .OrderByDescending(grouped => grouped.Count())
    .First();

That LINQ query is taking your list, grouping it by name property, so you are getting objects: name, Collection<ClassName>.

You want to Order them descending by it's Count and take First

How to return the frequent/highest repeated word from a List in C#?

2 Answers2