birthweight {isdals}

Birth weight of boys and girls

Description

Data from a study that was undertaken to investigate how the sex of the baby and the age of the fetus influence birth weight during the last weeks of the pregnancy.

Usage

data(birthweight)

Format

A data frame with 361 observations on the following 3 variables.

sex

a factor with levels male female

age

a numeric vector

weight

a numeric vector

Source

Anette Dobson (2001). An Introduction to Generalized Linear Models (2nd ed.) Chapman and Hall.

Examples

data(birthweight)
## maybe str(birthweight) ; plot(birthweight) ...