@Test
void testSummarize() throws Exception {

  Table table = Table.read().csv("../data/tornadoes_1950-2014.csv");
  Table result = table.summarize("Injuries", mean, stdDev).by("State");
  assertEquals(49, result.rowCount());
  assertEquals(3, result.columnCount());
  assertEquals(
      "4.580805569368441",
      result.where(result.stringColumn("state").isEqualTo("AL")).doubleColumn(1).getString(0));
}