MATLAB: Help with matrix code

MATLABmatrixmatrix arraymatrix manipulation

I am attempting to create the adjacency matrix of a star tree: https://en.wikipedia.org/wiki/Star_(graph_theory)
I have the following for a 10 vertices graph:
AdjacencyMatrix = [0 1 1 1 1 1 1 1 1 1
                   1 0 0 0 0 0 0 0 0 0
                   1 0 0 0 0 0 0 0 0 0
                   1 0 0 0 0 0 0 0 0 0
                   1 0 0 0 0 0 0 0 0 0
                   1 0 0 0 0 0 0 0 0 0
                   1 0 0 0 0 0 0 0 0 0
                   1 0 0 0 0 0 0 0 0 0
                   1 0 0 0 0 0 0 0 0 0
                   1 0 0 0 0 0 0 0 0 0]; % sets the adjacency matrix
Is there a quicker way to create a matrix like this but of a larger scale e.g. 100×100?

Best Answer

One approach:
AdjacencyMatrix = zeros(100);
AdjacencyMatrix(2:size(AdjacencyMatrix,1), 1) = 1;
AdjacencyMatrix(1, 2:size(AdjacencyMatrix,2)) = 1;
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