lag
Lag a Time Series
Compute a lagged version of a time series, shifting the time base
back by a given number of observations.
lag
is a generic function; this page documents its default
method.
 Keywords
 ts
Usage
lag(x, ...)
"lag"(x, k = 1, ...)
Arguments
 x
 A vector or matrix or univariate or multivariate time series
 k
 The number of lags (in units of observations).
 ...
 further arguments to be passed to or from methods.
Details
Vector or matrix arguments x
are given a tsp
attribute
via hasTsp
.
Value

A time series object with the same class as
x
.
Note
Note the sign of k
: a series lagged by a positive k
starts earlier.
References
Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole.
See Also
Examples
library(stats)
lag(ldeaths, 12) # starts one year earlier
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