Hello,
Try 'as.vector' or 'as.numeric'
x <- as.ts(rnorm(20))
y <- as.ts(rnorm(20))
plot(x)
plot(as.vector(lag(x,-9)),as.vector(y),type="p") # works
plot(as.numeric(lag(x,-9)),as.numeric(y),type="p") # also works
Rui Barradas
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