How to select data from a cell array based on some condition

Hi, I am facing a problem with cell array, I have a data, for example, A as below

A = {[0, 5], [-2, 3]; [0,0], [12,-21]};

And I want the output as a cell/array of values greater than 2, like this-

B = {[5], [3]; [0], [12]}

I tried this way but its not working

K = @(data, fn) cellfun(@(x) x(data{:}), fn,'UniformOutput',0);

B = K(A, {@(x) x > 2})

I would appreciate if anybody help me with this

[Stephen23]

"I want the output as a cell/array of values greater than 2, , like this- B = {[5], [3]; [0], [12]}"

How is zero greater than two ?

[Hedayat]

Sorry for not mentioning the case when it doesn’t satisfy the condition(both elements are zero). It should give me either zero or NaN.

Answer 1

[Stephen23]

>> A = {[0,5], [-2,3]; [0,0], [12,-21]};
>> B = cellfun(@(v)v(v>2),A,'Uni',0);
>> B(cellfun('isempty',B)) = {NaN}
B = 
    [  5]    [ 3]
    [NaN]    [12]

[Hedayat]

Thank you

Answer 2

[Walter Roberson]

B = cellfun(@(data) max(data), A, 'uniform', 0);
C = cellfun(@(data) min(data), A, 'uniform', 0);

[Hedayat]

Thanks Walter, but I actually needed to do more operation on my data so I edited the question to be more general. If you could help me with this too.