Footrot scores on lambs

Description

Incidence of two foot shape classes on 2513 lambs. The feet of 2513 lambs born in 1980 and 1981 from 5 mating groups were scored in two foot shape classes: 1) all four feet are normal, and 2) one foot is deformed. Two indicator variables were also recorded for the presence of the disease conditions scald and rot.

Usage

binnor

Format

A data frame with 10 columns and 2513 rows:

• record: Record number, integer values

• year: Cross year, an integer with values 1 and 2

• Grp: Group, factor with 5 levels

• Sex: Sex, factor with 2 levels

• Sire: Sire number, factor with 18 levels

• score5: Incidence of foot shape class 2

• score4: Incidence of foot shape class 1

• scald: Incidence of scald disease

• rot: Incidence of rot disease, binary response

• norm: A random Normal variate response