blockDiag

Purpose

Creates a block-diagonal matrix from one or more input matrices.

Format

d = blockDiag(A[, B, C ...])

Parameters:

A (One or more matrices)

Returns:

d (matrix) – Diagonal matrix constructed from the input matrices.

Examples

Basic example

a = { 0.5 1.1,
      2.0 0.3 };
b = 0.8;
c = { 0.2 1.0 0.7,
      1.3 0.6 1.4 };

d = blockDiag(a, b, c);

After the above code, d should equal:

    0.5 1.1   0   0   0   0
    2.0 0.3   0   0   0   0
d =   0   0 0.8   0   0   0
      0   0   0 0.2 1.0 0.7
      0   0   0 1.3 0.6 1.4

Remarks

The input matrices may be square or rectangular. The matrices do not need to have the same dimensions.