[R] Lag Function
Downey, Patrick
PDowney at urban.org
Mon Mar 22 17:15:27 CET 2010
Can anyone tell me what's going on here?
x <- matrix(data=c(1,2,3,4,5),ncol=1)
x1 <- lag(x,k=1)
x
x1
x - x1
That's with x specified as a column vector, but the same thing happens when
it's a row vector.
x <- c(1,2,3,4,5)
x1 <- lag(x,k=1)
x
x1
x - x1
When the documentation says "Vector or matrix arguments x are coerced to
time series." What does that mean?
Thank you,
Mitch
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