schz {season}R Documentation

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

data(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

Source

From Prof John McGrath and colleagues, The University of Queensland, Brisbane.

Examples

data(schz)
plot(schz$yrmon,schz$SczBroad,type='o',xlab='Date',ylab=
'Number of schizophrenia births')

[Package season version 0.2-3 Index]