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diff2

Fast lagged differences

Description

Computes the lagged and iterated differences.

Usage

diff2(x, idxs = NULL, lag = 1L, differences = 1L, ...)

Arguments

x

A numeric vector of length N.
idxs

A vector indicating subset of elements to operate over. If NULL, no subsetting is done.
lag

An integer specifying the lag.
differences

An integer specifying the order of difference.
...

Not used.

Value

Returns a numeric vector of length N - differences.

Author(s)

Henrik Bengtsson

See Also

diff().

Examples

diff2(1:10)
matrixStats

Functions that Apply to Rows and Columns of Matrices (and to Vectors)

v0.58.0
Artistic-2.0
Authors
Henrik Bengtsson [aut, cre, cph], Constantin Ahlmann-Eltze [ctb], Hector Corrada Bravo [ctb], Robert Gentleman [ctb], Jan Gleixner [ctb], Peter Hickey [ctb], Ola Hossjer [ctb], Harris Jaffee [ctb], Dongcan Jiang [ctb], Peter Langfelder [ctb], Brian Montgomery [ctb], Hugh Parsonage [ctb]
Initial release

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