diff2

Computes the lagged and iterated differences.

internal

univar

High-performing functions operating on rows and columns of matrices, e.g. col / rowMedians(), col / rowRanks(), and col / rowSds().  Functions optimized per data type and for subsetted calculations such that both memory usage and processing time is minimized.  There are also optimized vector-based methods, e.g. binMeans(), madDiff() and weightedMedian().

Henrik Bengtsson

matrixStats

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

Constantin Ahlmann-Eltze

Hector Corrada Bravo

Robert Gentleman

Jan Gleixner

Peter Hickey

Ola Hossjer

Harris Jaffee

Dongcan Jiang

Peter Langfelder

Brian Montgomery

Angelina Panagopoulou

Hugh Parsonage

Jakob Peder Pettersen

diff2 function

<dl><dt>x</dt>
<dd>A <code><a href="/link/numeric?package=matrixStats&version=1.0.0" data-mini-rdoc="matrixStats::numeric">numeric</a></code> <code><a href="/link/vector?package=matrixStats&version=1.0.0" data-mini-rdoc="matrixStats::vector">vector</a></code> of length
N.</dd>
<dt>idxs</dt>
<dd>A <code><a href="/link/vector?package=matrixStats&version=1.0.0" data-mini-rdoc="matrixStats::vector">vector</a></code> indicating subset of elements to
operate over. If <code><a href="/link/NULL?package=matrixStats&version=1.0.0" data-mini-rdoc="matrixStats::NULL">NULL</a></code>, no subsetting is done.</dd>
<dt>lag</dt>
<dd>An <code><a href="/link/integer?package=matrixStats&version=1.0.0" data-mini-rdoc="matrixStats::integer">integer</a></code> specifying the lag.</dd>
<dt>differences</dt>
<dd>An <code><a href="/link/integer?package=matrixStats&version=1.0.0" data-mini-rdoc="matrixStats::integer">integer</a></code> specifying the order of
difference.</dd>
<dt>...</dt>
<dd>Not used.</dd>
<dt>useNames</dt>
<dd>If <code><a href="/link/NA?package=matrixStats&version=1.0.0" data-mini-rdoc="matrixStats::NA">NA</a></code>, the default behavior of the 
function about naming support is remained. If <code><a href="/link/FALSE?package=matrixStats&version=1.0.0" data-mini-rdoc="matrixStats::FALSE">FALSE</a></code>, 
no naming support is done. Else if <code><a href="/link/TRUE?package=matrixStats&version=1.0.0" data-mini-rdoc="matrixStats::TRUE">TRUE</a></code>, names 
attributes of result are set.</dd></dl>

Arguments

Author

Fast lagged differences — diff2

<dl>

<dt>x</dt>
<dd>A <code><a href='https://rdrr.io/r/base/numeric.html'>numeric</a></code> <code><a href='https://rdrr.io/r/base/vector.html'>vector</a></code> of length
N.</dd>


<dt>idxs</dt>
<dd>A <code><a href='https://rdrr.io/r/base/vector.html'>vector</a></code> indicating subset of elements to
operate over. If <code><a href='https://rdrr.io/r/base/NULL.html'>NULL</a></code>, no subsetting is done.</dd>


<dt>lag</dt>
<dd>An <code><a href='https://rdrr.io/r/base/integer.html'>integer</a></code> specifying the lag.</dd>


<dt>differences</dt>
<dd>An <code><a href='https://rdrr.io/r/base/integer.html'>integer</a></code> specifying the order of
difference.</dd>


<dt>...</dt>
<dd>Not used.</dd>


<dt>useNames</dt>
<dd>If <code><a href='https://rdrr.io/r/base/NA.html'>NA</a></code>, the default behavior of the 
function about naming support is remained. If <code><a href='https://rdrr.io/r/base/logical.html'>FALSE</a></code>, 
no naming support is done. Else if <code><a href='https://rdrr.io/r/base/logical.html'>TRUE</a></code>, names 
attributes of result are set.</dd>

</dl>

Fast lagged differences

diff2: Fast lagged differences

Description

Usage

Value

Arguments

Author

See Also

Examples