compositions (version 2.0-4)

gsi.csum: Internal function: row and column sums of matrices

Description

Abbreviation for collapsing matrices

Usage

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

Value

A numeric vector.

Arguments

x

the matrix

Author

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

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.

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