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Returns number of days in each month or quarter of the observed time period.
monthdays(x)
time series
Time series
Useful for month length adjustments
# NOT RUN {
par(mfrow=c(2,1))
plot(ldeaths,xlab="Year",ylab="pounds",
main="Monthly deaths from lung disease (UK)")
ldeaths.adj <- ldeaths/monthdays(ldeaths)*365.25/12
plot(ldeaths.adj,xlab="Year",ylab="pounds",
main="Adjusted monthly deaths from lung disease (UK)")
# }
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