Question

I have a List double values in which some of the elements are NaN. I want to convert this list
into multiple list of doubles using NaN as delimiter.
Example:

List<double> values =  new List<double>        
   { 1.2, 2.2, 3.2, Double.NaN, 2.2, 2.3, Double.NaN, 4.1, 4.2, 4.3 }; 
List<List<double>> result = values.SomeLinqOperator....

Answer 1

List<List<double>> result = values.GroupDelimited(x => x == double.NaN)
                                  .Select(g => g.ToList())
                                  .ToList();

using the GroupDelimited Extension Method from here.