# blockmatrix: This function builds a blockmatrix In blockmatrix: blockmatrix: Tools to solve algebraic systems with partitioned matrices

## Description

This function builds a blockmatrix

## Usage

 ```1 2 3``` ``` blockmatrix(dim, value = NULL, names = NULL, list = NULL, use.as.blockmatrix = TRUE, adjust_zero = TRUE, add_zero_matrix = FALSE, zero_element = "0", ...) ```

## Arguments

 `dim` dimension of a block-matrix `value` matrix containing the indices (names) of blockmatrix element. If missing, it is `NULL` (Default). (sse `value` `names` charcarcter vector containing the names for each matrix-type element of the block-matrix `list` list containing the matrices to be inserted into the block-matrix. If `NULL` (Default) the matrix are faken from `...` `use.as.blockmatrix` logical value. If `TRUE` (Default) the method `as.blockmatrix` for blockmatrix object is applied to the output blockmatrix before being returned. `adjust_zero,add_zero_matrix,zero_element` arguments passed to `as.blockmatrix` `...` elements of the block-matrix.

Emanuele Cordano

## See Also

`as.blockmatrix`

## Examples

 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19``` ```rm(list=ls()) library(blockmatrix) A <- array(rnorm(9,mean=1),c(3,3)) B <- 0 #array(rnorm(9,mean=2),c(3,3)) C <- 0 D <- array(rnorm(9,mean=4),c(3,3)) F <- array(rnorm(9,mean=10),c(3,3)) M <- blockmatrix(names=c("A","0","D","0"),A=A,D=D,dim=c(2,2)) E <- blockmatrix(names=c("0","F","D","0"),F=F,D=D,dim=c(2,2)) R <- M+E S <- solve(R) P <- blockmatmult(R,E) l <- list(A=A,B=B,C=C,D=D,F=F) mv <- array(c("A","B","C","D","F","F"),c(3,2)) BB <- blockmatrix(value=mv,list=l) ```

blockmatrix documentation built on May 2, 2019, 6:11 a.m.