How to take number between two nested cell arrays

Hi,

I have two nested cell arrays

A = {[27,28,30,31]},{[26,25,30]},{[33,29,31,27,28]};

B = {[30,64,72,85]},{[15,33,62]},{[45,62,77,84,90]};

How can I take a max value of all entry nested in A and pick a value in B which corresponds to the max value of A?

so the result will be:

C = 33

D = 45

Thank you

Answer 1

[KSSV]

A = {[27,28,30,31],[26,25,30],[33,29,31,27,28]};
B = {[30,64,72,85],[15,33,62],[45,62,77,84,90]};

A = cell2mat(A) ; 
B = cell2mat(B) ;

[val,idx] = max(A) ;

iwant = B(idx)

[Ahmad Bayhaqi]

Hi @KSSV

I am afraid that cell2mat doesnt work for cell.

because in A and B, I have three nested cell

A = {[27,28,30,31]},{[26,25,30]},{[33,29,31,27,28]};

B = {[30,64,72,85]},{[15,33,62]},{[45,62,77,84,90]};

so, I got this error below;

"cell2mat does not support cell arrays containing cell arrays or objects".

[KSSV]

Wy you want to put extra cell braces in there?

Answer 2

[Chunru]

You can do the following (the code you gave above is NOT a nested cell):

A = {{[27,28,30,31]},{[26,25,30]},{[33,29,31,27,28]}};
B = {{[30,64,72,85]},{[15,33,62]},{[45,62,77,84,90]}};
A1= []; B1=[];
for i=1:length(A)
    A1 = [A1 A{i}{1}];
    B1 = [B1 B{i}{1}];
end
[C, id] = max(A1)

C = 33

id = 8

D = B1(id)

D = 45

[Ahmad Bayhaqi]

Hi @Chunru

How can I apply that code in R2015?

because I got error

"Error using horzcat

Dimensions of matrices being concatenated are not consistent"

[Chunru]

What are exactly your A and B?

[Ahmad Bayhaqi]

hi @Chunru

Here I attach the A and B file. That's the real number.

Like in the example of my question, I want to take max value of A and pick number B which corresponds to the max of A.

[Chunru]

You are having column vector in cell arraý instead of row vector. So you shoud use: A1 = [A1; A{i}{1}]; B1 = [B1; B{i}{1}];

[Ahmad Bayhaqi]

Hi @Chunru,

I am sorry for being too much asking, but still got an error message when use that line of code.

why it's said

"Cell contents reference from a non-cell array object"

[Chunru]

Your data is in a mixed format. Some elements are cells and some are arrays. Some are row vector and some are column vector. This cause the problem.

The following take care of these problems:

load('A', 'A');
load('B', 'B');
A1= []; B1=[];
for i=1:length(A)
    if iscell(A{i})
        A1 = [A1; A{i}{1}(:)];
        B1 = [B1; B{i}{1}(:)];
    else
        A1 = [A1; A{i}(:)];
        B1 = [B1; B{i}(:)];
    end
end
[C, id] = max(A1)
D = B1(id)