R: Fast lagged differences

diff2 {matrixStats} | R Documentation

## 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)

[Package matrixStats version 0.57.0 Index]