RatPupWeight dataset

The weight of rat pups

The RatPupWeight data frame has 322 rows and 5 columns.

Format

This data frame contains the following columns:

• weight: a numeric vector

• sex: a factor with levels Male

    `Female`
  

• Litter: an ordered factor with levels 9 < 8 < 7 < 4 < 2 < 10 < 1 < 3 < 5 < 6 < 21 < 22 < 24 < 27 < 26 < 25 < 23 < 17 < 11 < 14 < 13 < 15 < 16 < 20 < 19 < 18 < 12

• Lsize: a numeric vector

• Treatment: an ordered factor with levels Control < Low < High

Source

Pinheiro, J. C. and Bates, D. M. (2000), Mixed-Effects Models in S and S-PLUS, Springer, New York.