static void Main(string[] args)
{
    var fileName = "AgeRanges.csv";
    var pipeline = new LearningPipeline();

    // standard load from file
    pipeline.Add(new TextLoader(fileName).CreateFrom<AgeRange>(separator: ',', useHeader: true));

    // load data from List<>()
    var data = new List<AgeRange>
    {
        new AgeRange { Name = "John", Age  = 12, Sex = "M", Label = "boy"},
        new AgeRange { Name = "Laslo", Age  = 2, Sex = "M", Label = "baby"},
        new AgeRange { Name = "Mary", Age  = 16, Sex = "F", Label = "teenager"},
        new AgeRange { Name = "Gracie", Age  = 6, Sex = "F", Label = "girl"}
    };
    var collection = CollectionDataSource.Create(data);
    pipeline.Add(collection);

}