Find the most frequent numbers in an array using LINQ [duplicate]

Answer 1

Jason's answer is correct, but you can perform this operation in one LINQ operation.

        List list = new List() { 1, 1, 2, 2, 3, 4, 5 };

        // return most frequently occurring items
        var query = from i in list
                    group i by i into g

                    let maxFreq = (from i2 in list 
                                  group i2 by i2 into g2
                                  orderby g2.Count() descending 
                                  select g2.Count()).First() 

                    let gCount = g.Count()

                    where gCount == maxFreq 

                    select  g.Key;

        // dump to console
        foreach (var mode in query)
        {
            Console.WriteLine(mode);
        }