let n0 = data.table { csv: "group,yield\\nA,4.1\\nA,4.4\\nA,3.9\\nB,5.2\\nB,5.6\\nB,5.0\\nC,4.6\\nC,4.9\\nC,4.4" };
let n1 = stats.anova(data: n0.data.clone()) { value_column: "yield", group_column: "group" };
let n2 = data.groupby(data: n0.data) { by: "group" };