How to compare betwen two cells?

How to compare betwen two cells? like this:

S and T1 are two cell with different values:

c=1:
i=1;
SI{c},T1{i}

the error "Cell contents reference from a non-cell array object." appear

what is the suitble command matlab to use?

[dpb]

The error message is telling you that either one of or both SI and T1 aren't cell arrays. I note you wrote S in the body of the question but SI in the code...which is intended?

Show us what

whos S* T1

returns.

[Mira le]

S is cell intialised as

S= {1 2 , 2 3}

T1 also a cell

like

T1{1} = 1 2 3
T1{2} = 1 2 4
T1{4} = 1 2 3 5
S{1} = 1 2 
S{2} = 2 3 

each S{i} exist in T1{j}

[dpb]

The above is simply not so as written--

>> S= {1 2 , 2 3}
S =
  1×4 cell array
    {[1.00]}    {[2.00]}    {[2.00]}    {[3.00]}
>> whos S
  Name      Size            Bytes  Class    Attributes

  S         1x4               480  cell               

>> S{1}
ans =
          1.00
>> S{2}
ans =
          2.00
>> T1{1} = 1 2 3
T1{2} = 1 2 4
T1{4} = 1 2 3 5
 T1{1} = 1 2 3
           ↑
Error: Unexpected MATLAB expression.

So the T1 can't be...could write something like:

 
>> T1{1} = [1 2 3]
T1 =
  1×1 cell array
    {1×3 double}
>> S{T1{1}}
ans =
          1.00
ans =
          2.00
ans =
          2.00
>> 

returns each element indexed into S but in a comma-separated list. This can be consolidated by surrounding with braces as:

>> [S{T1{1}}]
ans =
          1.00          2.00          2.00
>> 

Or, you can return the elements as cell array if don't dereference S but only T1:

>> S(T1{1})
ans =
  1×3 cell array
    {[1.00]}    {[2.00]}    {[2.00]}
>> 

As requested before, we need to know precisely what storage form you do have; what you've posted simply doesn't work as written.

That's why asked for the output from the whos command--it shows what exists unequivocally.

Answer 1

[Ridwan Alam]

T1{1} = [1 2 3];
T1{2} = [1 2 4];
T1{4} = [1 2 3 5];
S{1} = [1 2];
S{2} = [2 3];

%
%

setdiff(cell2mat(T1),cell2mat(S))

% ans =
% 
%      4     5

Please accept the answer if it works!

[Ridwan Alam]

Hi Mira,

If this solution works, please accept as an answer.

If there is anything wrong, please let me know.

Thanks!!