#### 8.2.58.13 tblish.dataset.chickwts ¶

Static Method: `out =` chickwts `()` ¶

  Chicken Weights by Feed Type

  #### Description ¶

  An experiment was conducted to measure and compare the effectiveness of various feed supplements on the growth rate of chickens.

  Newly hatched chicks were randomly allocated into six groups, and each group was given a different feed supplement. Their weights in grams after six weeks are given along with feed types.

  #### Format ¶

  `weight`

    Chick weight at six weeks (gm).

  `feed`

    Feed type.

  #### Source ¶

  Anonymous (1948) Biometrika, 35, 214.

  #### References ¶

  McNeil, D. R. (1977). `Interactive Data Analysis`. New York: Wiley.

  #### Examples ¶

      # This example requires the statistics package from Octave Forge

      t = tblish.dataset.chickwts

      # Boxplot by group
      figure
      g = groupby (t, "feed", {
        "weight", @(x) {x}, "weight"
      });
      boxplot (g.weight, 1);
      xlabel ("feed"); ylabel ("Weight at six weeks (gm)");
      xticklabels ([{""} cellstr(g.feed')]);

      # Linear model
      # TODO: This linear model thing and anova