Subtracting two cell arrays, yielding a third cell array

Hi,

I have two cell array of vectors; each cell in both cell arrays contains a 1 by 3 vector. For example,

A={[20 20 20],[30 30 30],[40 40 40];[50 50 50],[60 60 60],[70 70 70]};
B={[1 1 1],[2 2 2],[3 3 3];[4 4 4],[5 5 5],[6 6 6]};

How can I subtract B from A? For example, I wish to find:

C={[19 19 19],[28 28 28],[37 37 37];[46 46 46],[55 55 55],[64 64 64]}

Is there a way I can do this without stepping through each cell, converting them to numeric arrays using cell2mat, and then converting them back to cells?

Thank you very much for your time.

Andrew DeYoung

Carnegie Mellon University

Answer 1

[Matt Fig]

C = cellfun(@minus,A,B,'Un',0)

[Rahav]

C = cellfun(@minus,A,B,'UniformOutput',false)

is clearer.

[Pierre Lonfat]

What does the 'Un' and 0 stand for ? Thanks !

[Stephen23]

'Un' and 0 are shorthand for 'UniformOutput',false, which tells cellfun to return a cell array.