R: Internal function: row and column sums of matrices

gsi.csum {compositions} | R Documentation

## Internal function: row and column sums of matrices

### Description

Abbreviation for collapsing matrices

### Usage

    gsi.csum(x)
    gsi.rsum(x)

### Arguments

`x` | the matrix

### Details

gsi.csum computes the sums of all the columns of x and gsi.rsum computes the sums of the rows of x. For convenience, only finite values are added.

### Value

A numeric vector.

### Note

Do not use gsi.* functions directly since they are internal functions of the package

### Author(s)

K.Gerald v.d. Boogaart http://www.stat.boogaart.de

### See Also

`sum`

### Examples

    #A <- matrix(c(0,1,0,0,0,0),ncol=2)
    #b <- diag(3)
    #erg <- gsi.svdsolve(A,b)
    #erg
    #A %*% erg
    #diag(c(0,1,0))  # richtig

[Package compositions version 1.40-3 Index]