lactation {GLMsData}

Lactation of dairy cows

Description

Lactation of dairy cows over time

Usage

data(lactation)

Format

A data frame containing 35 observations on the following 2 variables.

Yield

the average daily far yield from a dairy cow, in kg/day

Week

the week in which the data were collected

Details

The data give data from a lactating dairy cow, recording the average daily fat yield over 35 weeks.

Source

Harold V. Henderson and Charles E. McCulloch (1990) Transform or link? Technical Report BU-049-MA, Cornell University.

Examples

  data(lactation)
  plot(lactation$Yield ~ lactation$Week)