season (version 0.3.15)

schz: Schizophrenia Births in Australia, 1930--1971

Description

Monthly number of babies born with schizophrenia in Australia from 1930 to 1971. The national number of births and number of cases are missing for January 1960 are missing.

Usage

schz

Format

A data frame with 504 observations on the following 6 variables.

year

year of birth

month

month of birth

yrmon

a combination of year and month: \(year+(month-1)/12\)

NBirths

monthly number of births in Australia, used as an offset

SczBroad

monthly number of schizophrenia births using the broad diagnostic criteria

SOI

southern oscillation index

Examples

# NOT RUN {
data(schz)
plot(schz$yrmon, schz$SczBroad, type='o', xlab='Date',
     ylab='Number of schizophrenia births')

# }