Pairwise Differences

Description

Computes pairwise differences.

Usage

pair.diff(X)

Arguments

Details

The function computes all differences of row i and row j with i < j. The function is a wrapper to a C function to do the computation quickly and does no checks concerning the input.

Value

Matrix containing the differences.

Author(s)

Seija Sirki<c3><a4>, seija.sirkia@iki.fi

See Also

pair.prod, pair.sum

Examples

X <- matrix(1:10, ncol = 2, byrow = FALSE)
pair.diff(X)

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(ICSNP)
Loading required package: mvtnorm
Loading required package: ICS
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/ICSNP/pair.diff.Rd_%03d_medium.png", width=480, height=480)
> ### Name: pair.diff
> ### Title: Pairwise Differences
> ### Aliases: pair.diff
> ### Keywords: manip
> 
> ### ** Examples
> 
> X <- matrix(1:10, ncol = 2, byrow = FALSE)
> pair.diff(X)
      [,1] [,2]
 [1,]   -1   -1
 [2,]   -2   -2
 [3,]   -3   -3
 [4,]   -4   -4
 [5,]   -1   -1
 [6,]   -2   -2
 [7,]   -3   -3
 [8,]   -1   -1
 [9,]   -2   -2
[10,]   -1   -1
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>