This data set contains 108 observations on 6 variables.
data(traffic)
ln_number
logarithm of the number of monthly automobile accidents in the state of Michigan.
month
months from January 1st, 1979 to Decembe 31st, 1987.
ln_unemp
logarithm of unemployment rate
spring
indicator for spring season.
summer
indicator for summer season.
fall
indicator for fall season.
Lenk (1999) Bayesian inference for semiparametric regression using a Fourier representation. Journal of the Royal Statistical Society: Series B, 61(4), 863-879.
if (FALSE) {
data(traffic)
pairs(traffic)
}
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