zoo (version 0.9-1)

lag.zoo: Lags and Differences of zoo Objects

Description

Methods for computing lags and differences of "zoo" objects.

Usage

## S3 method for class 'zoo':
lag(x, k = 1, \dots)
## S3 method for class 'zoo':
diff(x, lag = 1, differences = 1, arithmetic = TRUE, \dots)

Arguments

x
a "zoo" object.
k, lag
the number of lags (in units of observations). Note the sign of k behaves as in lag.
differences
an integer indicating the order of the difference.
arithmetic
logical. Should arithmetic (or geometric) differences be computed?
...
currently not used.

Value

  • The lagged or differenced "zoo" object.

Details

These methods for "zoo" objects behave analogously to the default methods. The only additional argument is arithmetic in diff.

See Also

zoo, lag, diff

Examples

Run this code
x <- zoo(11:21)

lag(x, k = 1)
lag(x, k = -1)
# this pairs each value of x with the next or future value
merge(x, lag1 = lag(x, k=1))
diff(x^2)

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