Re: [R] superpose 2 time series with different time intervals

Try this: # two simulated series set.seed(123) ts.sim <- arima.sim(list(order = c(1,1,0), ar = 0.7), n = 70) ts.sim <- ts(c(ts.sim), start = 1940) ts.sim2 <- arima.sim(list(order = c(1,1,0), ar = 0.7), n = 12*70) ts.sim2 <- ts(c(ts.sim2), start = 1940, freq = 12) # plot plot(ts.sim2, type = "l",

[R] superpose 2 time series with different time intervals

I could use some advice. I've got 2 time series. Both cover approximately the same period of time (ie, 1940 to 2009). But one series has annual data and the other has monthly data. One refers to university enrollment; the other to unemployment rates. Both are currently in the same data frame. I'