blockDiag {limma} | R Documentation

## Block Diagonal Matrix

### Description

Form a block diagonal matrix from the given blocks.

### Usage

    blockDiag(...)

### Arguments

`...` | numeric matrices

### Details

This function is sometimes useful for constructing a design matrix for a disconnected two-color microarray experiment in conjunction with `modelMatrix`.

### Value

A block diagonal matrix with dimensions equal to the sum of the input dimensions

### Author(s)

Gordon Smyth

### See Also

`modelMatrix`

### Examples

    a <- matrix(1,3,2)
    b <- matrix(2,2,2)
    blockDiag(a,b)

[Package limma version 3.44.3 Index]