public void TestFrom2DArray() { var data = new double[5, 3] { { 0, 1, 2 }, { 10, 11, 12 }, { 20, 21, 22 }, { 30, 31, 32 }, { 40, 41, 42 } }; var d = DataMap.From2DArray(data); Assert.Equal(new[] { "Column0", "Column1", "Column2" }, d.ColumnNames); Assert.Equal(new double[] { 1, 11, 21, 31, 41 }, d["Column1"].Values); }